[FEATURE] Adds extension groups in select list (Local, System)

Classes/Controller/AbstractController.php

@@ -184,18 +184,34 @@ abstract class AbstractController extends ActionController {
 		$extensions = $cacheManager->getCache('lfeditor_select_options_cache')->get('extensionAndLangFileOptions');
 		if (empty($extensions)) {
 			$extensionOptions = $this->configurationService->menuExtList();
-
+			$extensionGroupCount = 0;
 			foreach ($extensionOptions as $extAddress => $extLabel) {
 				$extension['extLabel'] = $extLabel;
+				$extension['languageFileOptions'] = array();
+				$isExtensionGroupStart = $extAddress === '###extensionGroup###' . $extLabel;
 				try {
-					$extension['languageFileOptions'] = $this->configurationService->menuLangFileList($extAddress);
-					if (empty($extension['languageFileOptions'])) {
-						continue;
+					if (!$isExtensionGroupStart) {
+						$extension['languageFileOptions'] = $this->configurationService->menuLangFileList($extAddress);
+						if (empty($extension['languageFileOptions'])) {
+							continue;
+						}
+					} elseif (++$extensionGroupCount > 1) {
+						$extensions[$extAddress . 'EmptySpaceBefore'] = array(
+							'extLabel' => '',
+							'languageFileOptions' => array(),
+						);
 					}
 				} catch (LFException $e) {
 					continue;
 				}
 				$extensions[$extAddress] = $extension;
+
+				if ($isExtensionGroupStart) {
+					$extensions[$extAddress . 'DelimiterAfter'] = array(
+						'extLabel' => '======',
+						'languageFileOptions' => array(),
+					);
+				}
 			}
 			$cacheManager->getCache('lfeditor_select_options_cache')->set('extensionAndLangFileOptions', $extensions);
 		}

Classes/Utility/Functions.php

@@ -64,7 +64,7 @@ class Functions {
 				$prepArray[$extPath] = basename($extPath) . ' [' . $state . ']';
 			}
 			ksort($prepArray);
-			$myArray = array_merge($myArray, $prepArray);
+			$myArray = array_merge($myArray, array('###extensionGroup###' . $header => $header), $prepArray);
 		}
 		return $myArray;
 	}