diff --git a/misc/update/nix/multiprocessing/.do_not_run/switch.php b/misc/update/nix/multiprocessing/.do_not_run/switch.php
index 435ba8a04..db1de920d 100644
--- a/misc/update/nix/multiprocessing/.do_not_run/switch.php
+++ b/misc/update/nix/multiprocessing/.do_not_run/switch.php
@@ -16,7 +16,7 @@ use nntmux\Binaries;
 use nntmux\Groups;
 use nntmux\Nfo;
 use nntmux\NNTP;
-use nntmux\processing\ProcessMultiGroupReleases;
+use nntmux\processing\ProcessReleasesMultiGroup;
 use nntmux\RequestIDLocal;
 
 // Are we coming from python or php ? $options[0] => (string): python|php
@@ -151,7 +151,7 @@ switch ($options[1]) {
 	case 'releases':
 		$pdo = new DB();
 		$releases = new ProcessReleases(['Settings' => $pdo]);
-		$mgrreleases = new ProcessMultiGroupReleases(['Settings' => $pdo]);
+		$mgrreleases = new ProcessReleasesMultiGroup(['Settings' => $pdo]);
 
 		//Runs function that are per group
 		if (is_numeric($options[2])) {
@@ -223,7 +223,7 @@ switch ($options[1]) {
 			$backFill->backfillAllGroups($groupMySQL['name'], 20000, 'normal');
 
 			// Create releases.
-			processReleases(new ProcessReleases(['Settings' => $pdo]), new ProcessMultiGroupReleases(['Settings' => $pdo]), $options[2]);
+			processReleases(new ProcessReleases(['Settings' => $pdo]), new ProcessReleasesMultiGroup(['Settings' => $pdo]), $options[2]);
 
 			// Post process the releases.
 			(new ProcessAdditional(['Echo' => true, 'NNTP' => $nntp, 'Settings' => $pdo]))->start($options[2]);
@@ -279,7 +279,7 @@ switch ($options[1]) {
  * Create / process releases for a groupID.
  *
  * @param ProcessReleases $releases
- * @param ProcessMultiGroupReleases $mgrreleases
+ * @param ProcessReleasesMultiGroup $mgrreleases
  * @param int             $groupID
  */
 function processReleases($releases, $mgrreleases, $groupID)
@@ -288,8 +288,9 @@ function processReleases($releases, $mgrreleases, $groupID)
 	$releases->processIncompleteCollections($groupID);
 	$releases->processCollectionSizes($groupID);
 	$releases->deleteUnwantedCollections($groupID);
-	$releases->processCollectionSizes($groupID, true);
-	$releases->deleteUnwantedCollections($groupID, true);
+	$mgrreleases->processIncompleteMgrCollections($groupID);
+	$mgrreleases->processMgrCollectionSizes($groupID);
+	$mgrreleases->deleteUnwantedMgrCollections($groupID);
 
 	do {
 		$mgrReleasesCount = $mgrreleases->createMGRReleases($groupID);
@@ -300,6 +301,7 @@ function processReleases($releases, $mgrreleases, $groupID)
 		// This loops as long as the number of releases or nzbs added was >= the limit (meaning there are more waiting to be created)
 	} while (($releasesCount['added'] + $releasesCount['dupes'] + $mgrReleasesCount['added'] + $mgrReleasesCount['dupes']) >= $releaseCreationLimit || $nzbFilesAdded + $mgrFilesAdded >= $releaseCreationLimit);
 	$releases->deleteCollections($groupID);
+	$mgrreleases->deleteMgrCollections($groupID);
 }
 
 /**
diff --git a/nntmux/Binaries.php b/nntmux/Binaries.php
index 734022fd5..04f0f17fc 100755
--- a/nntmux/Binaries.php
+++ b/nntmux/Binaries.php
@@ -3,7 +3,7 @@ namespace nntmux;
 
 use app\models\Settings;
 use nntmux\db\DB;
-use nntmux\processing\ProcessMultiGroupReleases;
+use nntmux\processing\ProcessReleasesMultiGroup;
 
 /**
  * Class Binaries
@@ -85,7 +85,7 @@ class Binaries
 	protected $_pdo;
 
 	/**
-	 * @var ProcessMultiGroupReleases
+	 * @var ProcessReleasesMultiGroup
 	 */
 	protected $_multiGrp;
 
@@ -180,7 +180,7 @@ class Binaries
 		$this->_colorCLI = ($options['ColorCLI'] instanceof ColorCLI ? $options['ColorCLI'] : new ColorCLI());
 		$this->_nntp = ($options['NNTP'] instanceof NNTP ? $options['NNTP'] : new NNTP(['Echo' => $this->_colorCLI, 'Settings' => $this->_pdo, 'ColorCLI' => $this->_colorCLI]));
 		$this->_collectionsCleaning = ($options['CollectionsCleaning'] instanceof CollectionsCleaning ? $options['CollectionsCleaning'] : new CollectionsCleaning(['Settings' => $this->_pdo]));
-		$this->_multiGrp = new ProcessMultiGroupReleases(['Settings' => $this->_pdo]);
+		$this->_multiGrp = new ProcessReleasesMultiGroup(['Settings' => $this->_pdo]);
 
 		$this->_debug = (NN_DEBUG || NN_LOGGING);
 
diff --git a/nntmux/processing/ProcessReleases.php b/nntmux/processing/ProcessReleases.php
index e26ff90f2..dfca4dbf1 100755
--- a/nntmux/processing/ProcessReleases.php
+++ b/nntmux/processing/ProcessReleases.php
@@ -12,12 +12,12 @@ use nntmux\ReleaseImage;
 use nntmux\NZB;
 use nntmux\Categorize;
 use nntmux\Category;
-use nntmux\processing\ProcessMultiGroupReleases;
 use nntmux\RequestIDLocal;
 use nntmux\RequestIDWeb;
 use nntmux\PreDb;
 use nntmux\Genres;
 use nntmux\NNTP;
+use nntmux\processing\ProcessReleasesMultiGroup;
 use nntmux\utility\Utility;
 
 class ProcessReleases
@@ -135,6 +135,7 @@ class ProcessReleases
 		$this->releaseCleaning = ($options['ReleaseCleaning'] instanceof ReleaseCleaning ? $options['ReleaseCleaning'] : new ReleaseCleaning($this->pdo));
 		$this->releases = ($options['Releases'] instanceof Releases ? $options['Releases'] : new Releases(['Settings' => $this->pdo, 'Groups' => $this->groups]));
 		$this->releaseImage = ($options['ReleaseImage'] instanceof ReleaseImage ? $options['ReleaseImage'] : new ReleaseImage($this->pdo));
+		$this->mgr = new ProcessReleasesMultiGroup(['Settings' => $this->pdo]);
 
 		$this->tablePerGroup = (Settings::value('..tablepergroup') == 0 ? false : true);
 		$this->collectionDelayTime = (Settings::value('..delaytime') != '' ? (int)Settings::value('..delaytime') : 2);
@@ -186,18 +187,21 @@ class ProcessReleases
 		$this->processIncompleteCollections($groupID);
 		$this->processCollectionSizes($groupID);
 		$this->deleteUnwantedCollections($groupID);
-		$this->deleteUnwantedCollections($groupID, true);
+
+		$this->mgr->processIncompleteMgrCollections($groupID);
+		$this->mgr->processMgrCollectionSizes($groupID);
+		$this->mgr->deleteUnwantedMgrCollections($groupID);
 
 		$DIR = NN_MISC;
 
 		$totalReleasesAdded = 0;
 		do {
 			$releasesCount = $this->createReleases($groupID);
-			$mgrReleasesCount = (new ProcessMultiGroupReleases())->createMGRReleases($groupID);
+			$mgrReleasesCount = $this->mgr->createMGRReleases($groupID);
 			$totalReleasesAdded += $releasesCount['added'] += $mgrReleasesCount['added'];
 
 			$nzbFilesAdded = $this->createNZBs($groupID);
-			$mgrFilesAdded = (new ProcessMultiGroupReleases())->createMGRNZBs($groupID);
+			$mgrFilesAdded = $this->mgr->createMGRNZBs($groupID);
 			$this->deleteCollections($groupID);
 			if ($this->processRequestIDs === 0) {
 				$this->processRequestIDs($groupID, 5000, true);
@@ -300,17 +304,24 @@ class ProcessReleases
 		return $categorized;
 	}
 
+	public function processIncompleteCollections($groupID)
+	{
+		$tableNames = $this->initiateTableNames($groupID);
+		$this->processIncompleteCollectionsMain($groupID, $tableNames);
+	}
+
 	/**
 	 * Find complete collections to be processed by processCollectionSizes.
 	 *
 	 * @param int $groupID
+	 * @param     $tableNames
+	 *
 	 * @void
 	 * @access public
 	 */
-	public function processIncompleteCollections($groupID)
+	public function processIncompleteCollectionsMain($groupID, $tableNames)
 	{
 		$startTime = time();
-		$group = $this->initiateTableNames($groupID);
 
 		if ($this->echoCLI) {
 			$this->pdo->log->doEcho($this->pdo->log->header("Process Releases -> Attempting to find complete collections."));
@@ -318,27 +329,19 @@ class ProcessReleases
 
 		$where = (!empty($groupID) ? ' AND c.group_id = ' . $groupID . ' ' : ' ');
 
-		$this->processStuckCollections($group, $where);
-		$this->collectionFileCheckStage1($group, $where);
-		$this->collectionFileCheckStage2($group, $where);
-		$this->collectionFileCheckStage3($group, $where);
-		$this->collectionFileCheckStage4($group, $where);
-		$this->collectionFileCheckStage5($group, $where);
-		$this->collectionFileCheckStage6($group, $where);
-
-		$this->processStuckCollections($group, $where, true);
-		$this->collectionFileCheckStage1($group, $where, true);
-		$this->collectionFileCheckStage2($group, $where, true);
-		$this->collectionFileCheckStage3($group, $where, true);
-		$this->collectionFileCheckStage4($group, $where, true);
-		$this->collectionFileCheckStage5($group, $where, true);
-		$this->collectionFileCheckStage6($group, $where, true);
+		$this->processStuckCollections($tableNames, $where);
+		$this->collectionFileCheckStage1($tableNames, $where);
+		$this->collectionFileCheckStage2($tableNames, $where);
+		$this->collectionFileCheckStage3($tableNames, $where);
+		$this->collectionFileCheckStage4($tableNames, $where);
+		$this->collectionFileCheckStage5($tableNames, $where);
+		$this->collectionFileCheckStage6($tableNames, $where);
 
 		if ($this->echoCLI) {
 			$count = $this->pdo->queryOneRow(
 				sprintf(
 					'SELECT COUNT(id) AS complete FROM %s c WHERE filecheck = %d %s',
-					$group['cname'],
+					$tableNames['cname'],
 					self::COLLFC_COMPPART,
 					$where
 				)
@@ -352,23 +355,26 @@ class ProcessReleases
 		}
 	}
 
+	public function processCollectionSizes($groupID)
+	{
+		$tableNames = $this->initiateTableNames($groupID);
+		$this->processCollectionSizesMain($groupID, $tableNames);
+	}
+
 	/**
 	 * Calculate the total size of a complete collection (COLLFC_COMPPART) in bytes.
 	 * Set the collection to (COLLFC_SIZED)
 	 *
 	 * @param string|int $groupID (optional)
 	 *
-	 * @param bool       $multiGroup
+	 * @param            $tableNames
 	 *
 	 * @void
 	 * @access public
 	 */
-	public function processCollectionSizes($groupID, $multiGroup = false)
+	public function processCollectionSizesMain($groupID, $tableNames)
 	{
 		$startTime = time();
-		$group = $this->initiateTableNames($groupID);
-		$tablec = $multiGroup === true ? 'mgr_collections' : $group['cname'];
-		$tableb = $multiGroup === true ? 'mgr_binaries' : $group['bname'];
 
 		if ($this->echoCLI) {
 			$this->pdo->log->doEcho($this->pdo->log->header("Process Releases -> Calculating collection sizes (in bytes)."));
@@ -382,8 +388,8 @@ class ProcessReleases
 				filecheck = %d
 				WHERE c.filecheck = %d
 				AND c.filesize = 0 %s',
-				$tablec,
-				$tableb,
+				$tableNames['cname'],
+				$tableNames['bname'],
 				self::COLLFC_SIZED,
 				self::COLLFC_COMPPART,
 				(!empty($groupID) ? ' AND c.group_id = ' . $groupID : '')
@@ -399,23 +405,25 @@ class ProcessReleases
 		}
 	}
 
+	public function deleteUnwantedCollections($groupID)
+	{
+		$tableNames = $this->initiateTableNames($groupID);
+		$this->deleteUnwantedCollectionsMain($groupID, $tableNames);
+	}
+
 	/**
 	 * Delete unwanted collections based on size/file count using admin settings.
 	 *
 	 * @param int|string $groupID (optional)
 	 *
-	 * @param bool       $multiGroup
+	 * @param            $tableNames
 	 *
 	 * @void
-	 * @access public
+	 * @access   public
 	 */
-	public function deleteUnwantedCollections($groupID, $multiGroup = false)
+	public function deleteUnwantedCollectionsMain($groupID, $tableNames)
 	{
 		$startTime = time();
-		$group = $this->initiateTableNames($groupID);
-		$tablec = $multiGroup === true ? 'mgr_collections' : $group['cname'];
-		$tableb = $multiGroup === true ? 'mgr_binaries' : $group['bname'];
-		$tablep = $multiGroup === true ? 'mgr_parts' : $group['pname'];
 
 		if ($this->echoCLI) {
 			$this->pdo->log->doEcho(
@@ -454,7 +462,7 @@ class ProcessReleases
 			if ($this->pdo->queryOneRow(
 					sprintf(
 						'SELECT SQL_NO_CACHE id FROM %s c WHERE c.filecheck = %d AND c.filesize > 0 %s LIMIT 1',
-						$tablec,
+						$tableNames['cname'],
 						self::COLLFC_SIZED,
 						$this->tablePerGroup === false ? sprintf('AND c.group_id = %d', $groupID['id']) : ''
 					)
@@ -471,9 +479,9 @@ class ProcessReleases
 						AND c.filesize > 0
 						AND GREATEST(%d, %d) > 0
 						AND c.filesize < GREATEST(%d, %d)',
-						$tablec,
-						$tableb,
-						$tablep,
+						$tableNames['cname'],
+						$tableNames['bname'],
+						$tableNames['pname'],
 						self::COLLFC_SIZED,
 						$this->tablePerGroup === false ? sprintf('AND c.group_id = %d', $groupID['id']) : '',
 						$groupMinSizeSetting,
@@ -495,9 +503,9 @@ class ProcessReleases
 							LEFT JOIN %s p ON b.id = p.binaryid
 							WHERE c.filecheck = %d %s
 							AND c.filesize > %d',
-							$tablec,
-							$tableb,
-							$tablep,
+							$tableNames['cname'],
+							$tableNames['bname'],
+							$tableNames['pname'],
 							self::COLLFC_SIZED,
 							$this->tablePerGroup === false ? sprintf('AND c.group_id = %d', $groupID['id']) : '',
 							$maxSizeSetting
@@ -516,9 +524,9 @@ class ProcessReleases
 						WHERE c.filecheck = %d %s
 						AND GREATEST(%d, %d) > 0
 						AND c.totalfiles < GREATEST(%d, %d)',
-						$tablec,
-						$tableb,
-						$tablep,
+						$tableNames['cname'],
+						$tableNames['bname'],
+						$tableNames['pname'],
 						self::COLLFC_SIZED,
 						$this->tablePerGroup === false ? sprintf('AND c.group_id = %d', $groupID['id']) : '',
 						$groupMinFilesSetting,
@@ -791,8 +799,7 @@ class ProcessReleases
 		if ($this->echoCLI) {
 			$this->pdo->log->doEcho($this->pdo->log->header("Process Releases -> Create the NZB, delete collections/binaries/parts."));
 		}
-		$relMgrp = new ProcessMultiGroupReleases();
-		$posters = Utility::convertMultiArray($relMgrp->getAllPosters(), "','");
+		$posters = Utility::convertMultiArray($this->mgr->getAllPosters(), "','");
 		$releases = $this->pdo->queryDirect(
 			sprintf("
 				SELECT SQL_NO_CACHE CONCAT(COALESCE(cp.title,'') , CASE WHEN cp.title IS NULL THEN '' ELSE ' > ' END , c.title) AS title,
@@ -956,28 +963,28 @@ class ProcessReleases
 		}
 	}
 
+	public function deleteCollections($groupID)
+	{
+		$tableNames = $this->initiateTableNames($groupID);
+		$this->deleteCollectionsMain($groupID, $tableNames);
+	}
+
 	/**
 	 * Delete collections (complete/incomplete/old/etc).
 	 *
 	 * @param int|string $groupID (optional)
 	 *
-	 * @param bool       $multiGroup
+	 * @param            $tableNames
 	 *
 	 * @void
 	 * @access public
 	 */
-	public function deleteCollections($groupID, $multiGroup = false)
+	public function deleteCollectionsMain($groupID, $tableNames)
 	{
 		$startTime = time();
-		$group = $this->initiateTableNames($groupID);
-		$tablec = $multiGroup === true ? 'mgr_collections' : $group['cname'];
-		$tableb = $multiGroup === true ? 'mgr_binaries' : $group['bname'];
-		$tablep = $multiGroup === true ? 'mgr_parts' : $group['pname'];
 
 		$deletedCount = 0;
 
-		//(new ProcessMultiGroupReleases())->deleteMGRCollections();
-
 		// CBP older than retention.
 		if ($this->echoCLI) {
 			echo (
@@ -996,9 +1003,9 @@ class ProcessReleases
 				LEFT JOIN %s b ON (c.id=b.collection_id)
 				LEFT JOIN %s p ON (b.id=p.binaryid)
 				WHERE (c.dateadded < NOW() - INTERVAL %d HOUR) %s',
-				$tablec,
-				$tableb,
-				$tablep,
+				$tableNames['cname'],
+				$tableNames['bname'],
+				$tableNames['pname'],
 				Settings::value('..partretentionhours'),
 				(!empty($groupID) && $this->tablePerGroup === false ? ' AND c.group_id = ' . $groupID : '')
 			)
@@ -1036,9 +1043,9 @@ class ProcessReleases
 					LEFT JOIN %s b ON (c.id=b.collection_id)
 					LEFT JOIN %s p ON (b.id=p.binaryid)
 					WHERE (b.id IS NULL OR p.binaryid IS NULL) %s',
-					$tablec,
-					$tableb,
-					$tablep,
+					$tableNames['cname'],
+					$tableNames['bname'],
+					$tableNames['pname'],
 					(!empty($groupID) && $this->tablePerGroup === false ? ' AND c.group_id = ' . $groupID : '')
 				)
 			);
@@ -1070,7 +1077,7 @@ class ProcessReleases
 									LEFT JOIN %s p ON(b.id=p.binaryid)
 									LEFT JOIN %s c ON(b.collection_id=c.id)
 									WHERE (p.binaryid IS NULL OR c.id IS NULL) AND b.id < %d ',
-					$tableb, $tablep, $tablec, $this->maxQueryFormulator($tableb, 20000)
+					$tableNames['bname'], $tableNames['pname'], $tableNames['cname'], $this->maxQueryFormulator($tableNames['bname'], 20000)
 				)
 			);
 
@@ -1097,7 +1104,7 @@ class ProcessReleases
 			$deleteQuery = $this->pdo->queryExec(
 				sprintf(
 					'DELETE p FROM %s p LEFT JOIN %s b ON (p.binaryid=b.id) WHERE b.id IS NULL AND p.binaryid < %d',
-					$tablep, $tableb, $this->maxQueryFormulator($tableb, 20000)
+					$tableNames['pname'], $tableNames['bname'], $this->maxQueryFormulator($tableNames['bname'], 20000)
 				)
 			);
 			if ($deleteQuery !== false) {
@@ -1129,7 +1136,7 @@ class ProcessReleases
 				FROM %s c
 				INNER JOIN releases r ON r.id = c.releaseid
 				WHERE r.nzbstatus = 1',
-				$tablec
+				$tableNames['cname']
 			)
 		);
 
@@ -1143,9 +1150,9 @@ class ProcessReleases
 						LEFT JOIN %s b ON(c.id=b.collection_id)
 						LEFT JOIN %s p ON(b.id=p.binaryid)
 						WHERE c.id = %d',
-						$tablec,
-						$tableb,
-						$tablep,
+						$tableNames['cname'],
+						$tableNames['bname'],
+						$tableNames['pname'],
 						$collection['id']
 					)
 				);
@@ -1539,19 +1546,14 @@ class ProcessReleases
 	 * This means the the binary table has the same count as the file count in the subject, but
 	 * the collection might not be complete yet since we might not have all the articles in the parts table.
 	 *
-	 * @param array  $group
+	 * @param array  $tableNames
 	 * @param string $where
 	 *
-	 * @param bool   $multiGroup
-	 *
 	 * @void
-	 * @access private
+	 * @access   private
 	 */
-	private function collectionFileCheckStage1(array &$group, &$where, $multiGroup = false)
+	private function collectionFileCheckStage1(array &$tableNames, &$where)
 	{
-		$tablec = $multiGroup === true ? 'mgr_collections' : $group['cname'];
-		$tableb = $multiGroup === true ? 'mgr_binaries' : $group['bname'];
-
 		$this->pdo->queryExec(
 			sprintf('
 				UPDATE %s c INNER JOIN
@@ -1562,9 +1564,9 @@ class ProcessReleases
 					HAVING COUNT(b.id) IN (c.totalfiles, c.totalfiles + 1)
 					)
 				r ON c.id = r.id SET filecheck = %d',
-				$tablec,
-				$tablec,
-				$tableb,
+				$tableNames['cname'],
+				$tableNames['cname'],
+				$tableNames['bname'],
 				self::COLLFC_DEFAULT,
 				$where,
 				self::COLLFC_COMPCOLL
@@ -1580,19 +1582,13 @@ class ProcessReleases
 	 * at 0 then you would never get a complete collection if it starts with 1 and if it starts, you can end up creating
 	 * a incomplete collection, since you assumed it was complete.
 	 *
-	 * @param array  $group
+	 * @param array  $tableNames
 	 * @param string $where
-	 *
-	 * @param bool   $multiGroup
-	 *
 	 * @void
 	 * @access private
 	 */
-	private function collectionFileCheckStage2(array &$group, &$where, $multiGroup = false)
+	private function collectionFileCheckStage2(array &$tableNames, &$where)
 	{
-		$tablec = $multiGroup === true ? 'mgr_collections' : $group['cname'];
-		$tableb = $multiGroup === true ? 'mgr_binaries' : $group['bname'];
-
 		$this->pdo->queryExec(
 			sprintf('
 				UPDATE %s c INNER JOIN
@@ -1604,9 +1600,9 @@ class ProcessReleases
 					GROUP BY c.id
 					)
 				r ON c.id = r.id SET c.filecheck = %d',
-				$tablec,
-				$tablec,
-				$tableb,
+				$tableNames['cname'],
+				$tableNames['cname'],
+				$tableNames['bname'],
 				self::COLLFC_COMPCOLL,
 				$where,
 				self::COLLFC_ZEROPART
@@ -1617,7 +1613,7 @@ class ProcessReleases
 				UPDATE %s c
 				SET filecheck = %d
 				WHERE filecheck = %d %s',
-				$tablec,
+				$tableNames['cname'],
 				self::COLLFC_TEMPCOMP,
 				self::COLLFC_COMPCOLL,
 				$where
@@ -1629,19 +1625,15 @@ class ProcessReleases
 	 * Check if the files (binaries table) in a complete collection has all the parts.
 	 * If we have all the parts, set binaries table partcheck to FILE_COMPLETE.
 	 *
-	 * @param array  $group
+	 * @param array  $tableNames
 	 * @param string $where
 	 *
-	 * @param bool   $multiGroup
 	 *
 	 * @void
 	 * @access private
 	 */
-	private function collectionFileCheckStage3(array &$group, $where, $multiGroup = false)
+	private function collectionFileCheckStage3(array &$tableNames, $where)
 	{
-		$tablec = $multiGroup === true ? 'mgr_collections' : $group['cname'];
-		$tableb = $multiGroup === true ? 'mgr_binaries' : $group['bname'];
-
 		$this->pdo->queryExec(
 			sprintf('
 				UPDATE %s b INNER JOIN
@@ -1651,9 +1643,9 @@ class ProcessReleases
 					AND b.currentparts = b.totalparts
 					GROUP BY b.id, b.totalparts)
 				r ON b.id = r.id SET b.partcheck = %d',
-				$tableb,
-				$tableb,
-				$tablec,
+				$tableNames['bname'],
+				$tableNames['bname'],
+				$tableNames['cname'],
 				self::COLLFC_TEMPCOMP,
 				self::FILE_INCOMPLETE,
 				$where,
@@ -1669,9 +1661,9 @@ class ProcessReleases
 					AND b.currentparts >= (b.totalparts + 1)
 					GROUP BY b.id, b.totalparts)
 				r ON b.id = r.id SET b.partcheck = %d',
-				$tableb,
-				$tableb,
-				$tablec,
+				$tableNames['bname'],
+				$tableNames['bname'],
+				$tableNames['cname'],
 				self::COLLFC_ZEROPART,
 				self::FILE_INCOMPLETE,
 				$where,
@@ -1685,18 +1677,14 @@ class ProcessReleases
 	 * Set collections filecheck column to COLLFC_COMPPART.
 	 * This means the collection is complete.
 	 *
-	 * @param array  $group
+	 * @param array  $tableNames
 	 * @param string $where
 	 *
-	 * @param bool   $multiGroup
-	 *
 	 * @void
 	 * @access private
 	 */
-	private function collectionFileCheckStage4(array &$group, &$where, $multiGroup= false)
+	private function collectionFileCheckStage4(array &$tableNames, &$where)
 	{
-		$tablec = $multiGroup === true ? 'mgr_collections' : $group['cname'];
-		$tableb = $multiGroup === true ? 'mgr_binaries' : $group['bname'];
 
 		$this->pdo->queryExec(
 			sprintf('
@@ -1706,9 +1694,9 @@ class ProcessReleases
 					WHERE b.partcheck = 1 AND c.filecheck IN (%d, %d) %s
 					GROUP BY b.collection_id, c.totalfiles, c.id HAVING COUNT(b.id) >= c.totalfiles)
 				r ON c.id = r.id SET filecheck = %d',
-				$tablec,
-				$tablec,
-				$tableb,
+				$tableNames['cname'],
+				$tableNames['cname'],
+				$tableNames['bname'],
 				self::COLLFC_TEMPCOMP,
 				self::COLLFC_ZEROPART,
 				$where,
@@ -1721,24 +1709,20 @@ class ProcessReleases
 	 * If not all files (binaries table) had their parts on the previous stage,
 	 * reset the collection filecheck column to COLLFC_COMPCOLL so we reprocess them next time.
 	 *
-	 * @param array  $group
+	 * @param array  $tableNames
 	 * @param string $where
 	 *
-	 * @param bool   $multiGroup
-	 *
 	 * @void
 	 * @access private
 	 */
-	private function collectionFileCheckStage5(array &$group, &$where, $multiGroup = false)
+	private function collectionFileCheckStage5(array &$tableNames, &$where)
 	{
-		$tablec = $multiGroup === true ? 'mgr_collections' : $group['cname'];
-
 		$this->pdo->queryExec(
 			sprintf('
 				UPDATE %s c
 				SET filecheck = %d
 				WHERE filecheck IN (%d, %d) %s',
-				$tablec,
+				$tableNames['cname'],
 				self::COLLFC_COMPCOLL,
 				self::COLLFC_TEMPCOMP,
 				self::COLLFC_ZEROPART,
@@ -1751,27 +1735,22 @@ class ProcessReleases
 	 * If a collection did not have the file count (ie: [00/12]) or the collection is incomplete after
 	 * $this->collectionDelayTime hours, set the collection to complete to create it into a release/nzb.
 	 *
-	 * @param array  $group
+	 * @param array  $tableNames
 	 * @param string $where
 	 *
-	 * @param bool   $multiGroup
-	 *
 	 * @void
 	 * @access private
 	 */
-	private function collectionFileCheckStage6(array &$group, &$where, $multiGroup = false)
+	private function collectionFileCheckStage6(array &$tableNames, &$where)
 	{
-		$tablec = $multiGroup === true ? 'mgr_collections' : $group['cname'];
-		$tableb = $multiGroup === true ? 'mgr_binaries' : $group['bname'];
-
 		$this->pdo->queryExec(
 			sprintf("
 				UPDATE %s c SET filecheck = %d, totalfiles = (SELECT COUNT(b.id) FROM %s b WHERE b.collection_id = c.id)
 				WHERE c.dateadded < NOW() - INTERVAL '%d' HOUR
 				AND c.filecheck IN (%d, %d, 10) %s",
-				$tablec,
+				$tableNames['cname'],
 				self::COLLFC_COMPPART,
-				$tableb,
+				$tableNames['bname'],
 				$this->collectionDelayTime,
 				self::COLLFC_DEFAULT,
 				self::COLLFC_COMPCOLL,
@@ -1783,20 +1762,15 @@ class ProcessReleases
 	/**
 	 * If a collection has been stuck for $this->collectionTimeout hours, delete it, it's bad.
 	 *
-	 * @param array  $group
+	 * @param array  $tableNames
 	 * @param string $where
 	 *
-	 * @param bool   $multiGroup
-	 *
 	 * @void
 	 * @access private
 	 */
-	private function processStuckCollections(array $group, $where, $multiGroup = false)
+	private function processStuckCollections(array $tableNames, $where)
 	{
 		$lastRun = Settings::value('indexer.processing.last_run_time');
-		$tablec = $multiGroup === true ? 'mgr_collections' : $group['cname'];
-		$tableb = $multiGroup === true ? 'mgr_binaries' : $group['bname'];
-		$tablep = $multiGroup === true ? 'mgr_parts' : $group['pname'];
 
 		$obj = $this->pdo->queryExec(
 			sprintf("
@@ -1807,9 +1781,9 @@ class ProcessReleases
                     c.added <
                     DATE_SUB({$this->pdo->escapeString($lastRun)}, INTERVAL %d HOUR)
                 %s",
-				$tablec,
-				$tableb,
-				$tablep,
+				$tableNames['cname'],
+				$tableNames['bname'],
+				$tableNames['pname'],
 				$this->collectionTimeout,
 				$where
 			)
diff --git a/nntmux/processing/ProcessMultiGroupReleases.php b/nntmux/processing/ProcessReleasesMultiGroup.php
similarity index 70%
rename from nntmux/processing/ProcessMultiGroupReleases.php
rename to nntmux/processing/ProcessReleasesMultiGroup.php
index 1346dd2ad..4b5a68094 100644
--- a/nntmux/processing/ProcessMultiGroupReleases.php
+++ b/nntmux/processing/ProcessReleasesMultiGroup.php
@@ -6,7 +6,7 @@ use nntmux\NZBMultiGroup;
 use nntmux\utility\Utility;
 
 
-class ProcessMultiGroupReleases extends ProcessReleases
+class ProcessReleasesMultiGroup extends ProcessReleases
 {
 	/**
 	 * @var
@@ -20,7 +20,7 @@ class ProcessMultiGroupReleases extends ProcessReleases
 
 
 	/**
-	 * ProcessMultiGroupReleases constructor.
+	 * ProcessReleasesMultiGroup constructor.
 	 *
 	 * @param array $options
 	 */
@@ -54,7 +54,46 @@ class ProcessMultiGroupReleases extends ProcessReleases
 	}
 
 	/**
-	 * Create releases from complete collections.
+	 * Process incomplete MultiGroup Releases
+	 *
+	 * @param $groupID
+	 */
+	public function processIncompleteMgrCollections($groupID)
+	{
+		$tableNames = $this->initiateMgrTableNames();
+		$this->processIncompleteCollectionsMain($groupID, $tableNames);
+	}
+
+	/**
+	 * Process MultiGroup collection sizes
+	 *
+	 * @param $groupID
+	 */
+	public function processMgrCollectionSizes($groupID)
+	{
+		$tableNames = $this->initiateMgrTableNames();
+		$this->processCollectionSizesMain($groupID, $tableNames);
+	}
+
+	/**
+	 * Delete unwanted MultiGroup collections
+	 *
+	 * @param $groupID
+	 */
+	public function deleteUnwantedMgrCollections($groupID)
+	{
+		$tableNames = $this->initiateMgrTableNames();
+		$this->deleteUnwantedCollectionsMain($groupID, $tableNames);
+	}
+
+	public function deleteMgrCollections($groupID)
+	{
+		$tableNames = $this->initiateMgrTableNames();
+		$this->deleteCollectionsMain($groupID, $tableNames);
+	}
+
+	/**
+	 * Create releases from complete MultiGroup collections.
 	 *
 	 * @param $groupID
 	 *
@@ -68,7 +107,7 @@ class ProcessMultiGroupReleases extends ProcessReleases
 	}
 
 	/**
-	 * Create NZB files from complete releases.
+	 * Create NZB files from complete MultiGroup releases.
 	 *
 	 *
 	 * @param $groupID
@@ -114,7 +153,7 @@ class ProcessMultiGroupReleases extends ProcessReleases
 	}
 
 	/**
-	 * Add multi group posters to database
+	 * Add MultiGroup posters to database
 	 *
 	 * @param $poster
 	 */
@@ -124,7 +163,7 @@ class ProcessMultiGroupReleases extends ProcessReleases
 	}
 
 	/**
-	 * Update multi group poster
+	 * Update MultiGroup poster
 	 *
 	 * @param $id
 	 * @param $poster
@@ -135,7 +174,7 @@ class ProcessMultiGroupReleases extends ProcessReleases
 	}
 
 	/**
-	 * Delete multi group posters from database
+	 * Delete MultiGroup posters from database
 	 *
 	 * @param $id
 	 */
@@ -145,7 +184,7 @@ class ProcessMultiGroupReleases extends ProcessReleases
 	}
 
 	/**
-	 * Fetch all multi group posters from database
+	 * Fetch all MultiGroup posters from database
 	 *
 	 * @return array|bool
 	 */
diff --git a/www/admin/poster-delete.php b/www/admin/poster-delete.php
index fd02215a9..0351f1cfb 100644
--- a/www/admin/poster-delete.php
+++ b/www/admin/poster-delete.php
@@ -2,13 +2,13 @@
 require_once './config.php';
 
 
-use nntmux\processing\ProcessMultiGroupReleases;
+use nntmux\processing\ProcessReleasesMultiGroup;
 
 $page = new AdminPage();
 
 if (isset($_GET['id']))
 {
-	$mgr = new ProcessMultiGroupReleases();
+	$mgr = new ProcessReleasesMultiGroup();
 	$mgr->deletePoster($_GET['id']);
 }
 
diff --git a/www/admin/posters-edit.php b/www/admin/posters-edit.php
index 447d5cf1b..aed235db7 100644
--- a/www/admin/posters-edit.php
+++ b/www/admin/posters-edit.php
@@ -3,10 +3,10 @@
 require_once './config.php';
 
 
-use nntmux\processing\ProcessMultiGroupReleases;
+use nntmux\processing\ProcessReleasesMultiGroup;
 
 $page = new AdminPage();
-$relPosters = new ProcessMultiGroupReleases(['Settings' => $page->settings]);
+$relPosters = new ProcessReleasesMultiGroup(['Settings' => $page->settings]);
 
 // Set the current action.
 $action = isset($_REQUEST['action']) ? $_REQUEST['action'] : 'view';