diff --git a/api/js/etemplate/etemplate2.js b/api/js/etemplate/etemplate2.js
index 16b783e50f..ea3ba8bb7b 100644
--- a/api/js/etemplate/etemplate2.js
+++ b/api/js/etemplate/etemplate2.js
@@ -365,7 +365,7 @@ var etemplate2 = /** @class */ (function () {
         var appname = _name.split('.')[0];
         // if no app object provided and template app is not currentapp (eg. infolog CRM view)
         // create private app object / closure with just classes / prototypes
-        if (!_app && appname && appname != currentapp || _open_target == "_tab") {
+        if (!_app && appname && appname != currentapp || _open_target) {
             app = { classes: window.app.classes };
         }
         // remember used app object, to eg. use: onchange="widget.getInstanceMgr().app_object[app].callback()"
@@ -995,6 +995,8 @@ var etemplate2 = /** @class */ (function () {
         }
         // handle framework.setSidebox calls
         if (window.framework && jQuery.isArray(data.setSidebox)) {
+            if (data['open-target'])
+                data.setSidebox[0] = data['open-target'];
             window.framework.setSidebox.apply(window.framework, data.setSidebox);
         }
         // regular et2 re-load
diff --git a/api/js/etemplate/etemplate2.ts b/api/js/etemplate/etemplate2.ts
index 4a43208d4a..900c90c337 100644
--- a/api/js/etemplate/etemplate2.ts
+++ b/api/js/etemplate/etemplate2.ts
@@ -462,7 +462,7 @@ export class etemplate2
 		const appname = _name.split('.')[0];
 		// if no app object provided and template app is not currentapp (eg. infolog CRM view)
 		// create private app object / closure with just classes / prototypes
-		if (!_app && appname && appname != currentapp || _open_target == "_tab")
+		if (!_app && appname && appname != currentapp || _open_target)
 		{
 			app = {classes: window.app.classes};
 		}
@@ -1280,6 +1280,8 @@ export class etemplate2
 		// handle framework.setSidebox calls
 		if (window.framework && jQuery.isArray(data.setSidebox))
 		{
+			if (data['open-target']) data.setSidebox[0] = data['open-target'];
+
 			window.framework.setSidebox.apply(window.framework, data.setSidebox);
 		}
 
diff --git a/api/js/framework/fw_base.js b/api/js/framework/fw_base.js
index b516ddfbaa..490dd1db55 100644
--- a/api/js/framework/fw_base.js
+++ b/api/js/framework/fw_base.js
@@ -563,6 +563,10 @@ var fw_base = (function(){ "use strict"; return Class.extend(
 
 		//As a new tab might remove a row from the tab header, we have to resize all tab content browsers
 		 this.tag.parentFw.resizeHandler();
+		if (app.appName.match(/:/))
+		{
+			app.destroy();
+		}
 	 },
 
 	/**
@@ -676,9 +680,9 @@ var fw_base = (function(){ "use strict"; return Class.extend(
 		var app = this.parseAppFromUrl(_link);
 		if (app)
 		{
-			// add target flag
-			_link += '&target=_tab';
 			var appname = app.appName+":"+(_extra.id ? _extra.id : btoa(_link));
+			// add target flag
+			_link += '&target='+appname;
 			// create an actual clone of existing app object
 			this.applications[appname] = jQuery.extend(true, {}, app);
 			// merge extra framework app data into the new one
@@ -687,6 +691,10 @@ var fw_base = (function(){ "use strict"; return Class.extend(
 			this.applications[appname]['indexUrl'] = _link;
 			this.applications[appname]['tab'] = null; // must be rest to create a new tab
 			this.applications[appname]['browser'] = null; // must be rest to create a new browser content
+			this.applications[appname]['sidemenuEntry'] = this.sidemenuUi.addEntry(
+				this.applications[appname].displayName, this.applications[appname].icon,
+				this.applicationClickCallback, this.applications[appname], appname);
+
 
 			this.applicationTabNavigate(this.applications[appname], _link, false, -1, null);
 		}
diff --git a/api/js/framework/fw_classes.js b/api/js/framework/fw_classes.js
index e18ac247b0..84293d5319 100644
--- a/api/js/framework/fw_classes.js
+++ b/api/js/framework/fw_classes.js
@@ -51,6 +51,18 @@ function egw_fw_class_application(_parentFw, _appName, _displayName, _icon,
 	this.browser = null;
 }
 
+/**
+ * destroy application object and its relative parts
+ */
+egw_fw_class_application.prototype.destroy = function()
+{
+	delete this.tab;
+	if (this.sidemenuEntry) this.sidemenuEntry.remove();
+	delete this.sidemenuEntry;
+	delete this.browser;
+	delete (framework.applications[this.appName]);
+};
+
 /**
  * Returns an menuaction inside the jdots_framework for this application.
  * without a "this" context (by directly calling egw_fw_class_application.prototype.getAjaxUrl)