diff --git a/assets/wordpress-bdp.css b/assets/wordpress-bdp.css
index d70f95a..d10e3e7 100644
--- a/assets/wordpress-bdp.css
+++ b/assets/wordpress-bdp.css
@@ -393,4 +393,14 @@ li.wp-has-submenu.wp-not-current-submenu.opensub:hover:after,
     background-color: #FFFFFF !important;
 }
 
+.bdp-newplugin-button:hover {
+    color: #ffffff !important;
+    background-color: #1d4899 !important;
+}
 
+.bdp-newplugin-button {
+    background-color: #ffffff !important;
+    padding: 5px 20px !important;
+    cursor: pointer !important;
+    color: #1d4899 !important;
+}
diff --git a/bdp-kompass.php b/bdp-kompass.php
index 421173e..3ce5898 100644
--- a/bdp-kompass.php
+++ b/bdp-kompass.php
@@ -2,7 +2,7 @@
 /**
  * Plugin Name:  BdP Kompass
  * Description: Wordpress-Plugin zur Unterstützung von Stämmen im Bund der Pfadfinderinnen und Pfadfinder e.V. zur optimalen Verwaltung eurer Webseite
- * Version: 4.6.2
+ * Version: 4.8.1
  * Tags: bdp, utility, helper
  * Requires at least: 6.0
  * Requires PHP: 8.2
@@ -34,7 +34,6 @@ function bdp_plugin_init() {
 
 	if (null == get_option('kompass_already_installed', null)) {
 		Seo::setup();
-		Calendar::setup();
 		Security::setup();
 		update_option('kompass_already_installed', true);
 		wp_redirect( 'site-health.php?tab=bdp_enhanced_security');
diff --git a/includes/frontend-functions.php b/includes/frontend-functions.php
index 029034c..689bf07 100644
--- a/includes/frontend-functions.php
+++ b/includes/frontend-functions.php
@@ -20,3 +20,51 @@ function bdp_update_dashboard_style() {
     wp_enqueue_style('custom-calendar-styles', BDP_LV_PLUGIN_URL . '/assets/calendar.css');
     wp_enqueue_style('custom-security-styles', BDP_LV_PLUGIN_URL . '/assets/security.css');
 }
+
+function kompass_install_plugin($url, $slug) {
+    // Überprüfen, ob die URL gültig ist
+    if (filter_var($url, FILTER_VALIDATE_URL) === FALSE) {
+        echo 'Ungültige URL';
+        return;
+    }
+
+    // Dateinamen und Pfad festlegen
+    $tmp_file = download_url($url);
+
+    // Überprüfen, ob der Download erfolgreich war
+    if (is_wp_error($tmp_file)) {
+        echo 'Download-Fehler: ' . $tmp_file->get_error_message();
+        return;
+    }
+
+    // Pfad des Plugins
+    $plugin_folder = WP_PLUGIN_DIR;
+
+    // Plugin Upgrader Klassen einbinden
+    require_once ABSPATH . 'wp-admin/includes/file.php';
+    require_once ABSPATH . 'wp-admin/includes/plugin.php';
+    require_once ABSPATH . 'wp-admin/includes/misc.php';
+    require_once ABSPATH . 'wp-admin/includes/class-wp-upgrader.php';
+    require_once ABSPATH . 'wp-admin/includes/class-wp-ajax-upgrader-skin.php';
+    require_once ABSPATH . 'wp-admin/includes/class-plugin-upgrader.php';
+
+    // Plugin upgrader initialisieren
+    $upgrader = new Plugin_Upgrader(new WP_Ajax_Upgrader_Skin());
+
+    // Plugin installieren
+    $result = $upgrader->install($tmp_file);
+
+    // Temp Datei löschen
+    unlink($tmp_file);
+    activate_plugin($slug . '/' . $slug . '.php' );
+
+
+    // Überprüfen, ob die Installation erfolgreich war
+    if (is_wp_error($result)) {
+        echo 'Installations-Fehler: ' . $result->get_error_message();
+    } else {
+        echo 'Plugin erfolgreich installiert';
+    }
+
+}
+
diff --git a/modules/KompassSettings/Controllers/SettingsPage.php b/modules/KompassSettings/Controllers/SettingsPage.php
index c48d08f..2428e76 100644
--- a/modules/KompassSettings/Controllers/SettingsPage.php
+++ b/modules/KompassSettings/Controllers/SettingsPage.php
@@ -6,6 +6,49 @@ namespace Bdp\Modules\KompassSettings\Controllers;
 class SettingsPage
 {
     public static function add_menu() {
+        if (
+            null !== get_option('bdp_calendar_source_url', null ) ||
+            !file_exists(dirname(BDP_LV_STARTUP_FILE ) . '/../kronos/kronos.php')
+        )
+         {
+            add_menu_page(
+                'Kalender Installation',
+                'Kalender Installation',
+                'manage_options',
+                'kompass-calendar',
+                ['Bdp\Modules\PluginInstaller\Controllers\InstallSingleplugin', 'install_calendar'],
+                'dashicons-calendar-alt',
+                2
+            );
+
+            if ( file_exists(dirname(BDP_LV_STARTUP_FILE ) . '/../kronos/kronos.php') ) {
+                add_action( 'admin_notices', array( 'Bdp\Modules\PluginInstaller\Controllers\OutdatedModule', 'calender' ) );
+            }
+        }
+
+
+        if (
+            !file_exists(dirname(BDP_LV_STARTUP_FILE ) . '/../solea/solea.php')
+        )
+        {
+            add_menu_page(
+                'Installiere solea (Veranstaltungen)',
+                'Installiere solea (Veranstaltungen)',
+                'manage_options',
+                'kompass-events',
+                ['Bdp\Modules\PluginInstaller\Controllers\InstallSingleplugin', 'install_events'],
+                'dashicons-tickets-alt',
+                2
+            );
+
+        }
+
+
+
+
+
+
+
 	    add_submenu_page('options-general.php',
 		    'kompass Einstellungen',
 		    'kompass Einstellungen',
@@ -63,10 +106,8 @@ class SettingsPage
         if (isset($_REQUEST['update_options']) && $_REQUEST['update_options'] == true) {
             switch ($tab) {
                 case 'tab2':
-	                update_option('bdp_calendar_categories', json_encode($_POST['category']));
-	                update_option('bdp_calendar_source_url', $_POST['bdp_calendar_source_url']);
-	                $showMessage = __('The settings were saved.', BDP_LV_PLUGIN_SLUG);
-                    break;
+                    kompass_print_message_box('Diese Funktion wird nicht mdehr unterstützt.', 'error');
+	                break;
 
                 case 'tab3':
                     update_option('kompass_seo_google_verification', $_POST['kompass_seo_google_verification']);
diff --git a/modules/calendar/classes/Calendar.class.php b/modules/calendar/classes/Calendar.class.php
index 7b00912..da29a54 100644
--- a/modules/calendar/classes/Calendar.class.php
+++ b/modules/calendar/classes/Calendar.class.php
@@ -5,25 +5,6 @@ class Calendar
     public $ical;
     private $categories = [];
 
-    public static function setup()
-    {
-        $pageName = 'Kalender';
-        $page_exists = get_page_by_path($pageName, OBJECT, 'page');
-
-        // Wenn die Seite nicht existiert, erstelle sie
-        if (!$page_exists) {
-            $page_id = wp_insert_post(array(
-                'post_title' => $pageName,
-                'post_content' => '{{calendar}}',
-                'post_status' => 'publish',
-                'post_type' => 'page',
-            ));
-
-            update_option('bdp_calendar_source_url', 'https://wiki.sachsen.pfadfinden.de/rest/calendar-services/1.0/calendar/export/subcalendar/private/ff69f5a689391ac0d7f78a70189cfde7c48cb923.ics');
-        }
-    }
-
-
     public static function printCalendar($content) : string {
         // Der zu ersetzende String
         $original_string = '{{calendar}}';
@@ -67,8 +48,10 @@ class Calendar
         }
 
 
-        $calendarUrl = get_option('bdp_calendar_source_url', 'https://wiki.sachsen.pfadfinden.de/rest/calendar-services/1.0/calendar/export/subcalendar/private/ff69f5a689391ac0d7f78a70189cfde7c48cb923.ics');
-
+        $calendarUrl = get_option('bdp_calendar_source_url', null);
+        if (null === '') {
+            return;
+        }
         $this->ical = new \ICal('', array(
             'defaultSpan' => 2,     // Default value
             'defaultTimeZone' => '',
diff --git a/modules/plugin-installer/Controllers/class-installsingleplugin.php b/modules/plugin-installer/Controllers/class-installsingleplugin.php
new file mode 100644
index 0000000..a28f5cf
--- /dev/null
+++ b/modules/plugin-installer/Controllers/class-installsingleplugin.php
@@ -0,0 +1,57 @@
+<?php
+/**
+ * File: class-installsingleplugin.php
+ *
+ *
+ * @since 2024-08-12
+ * @license GPL-3.0-or-later
+ *
+ * @package
+ */
+
+namespace Bdp\Modules\PluginInstaller\Controllers;
+
+use Plugin_Upgrader;
+use WP_Ajax_Upgrader_Skin;
+
+class InstallSingleplugin
+{
+    public static function install_calendar ()
+    {
+        if ( isset( $_REQUEST[ 'install' ] ) ) {
+            if ( !file_exists( dirname( BDP_LV_STARTUP_FILE ) . '/../kronos/kronos.php' ) ) {
+                $pageName = 'Kalender';
+                $page_exists = get_page_by_path( $pageName, OBJECT, 'page' );
+                if ( is_object( $page_exists ) ) {
+                    wp_delete_post( $page_exists->ID, false );
+                }
+                $calendar_connection = get_option( 'bdp_calendar_source_url',
+                    'https://wiki.sachsen.pfadfinden.de/rest/calendar-services/1.0/calendar/export/subcalendar/private/ff69f5a689391ac0d7f78a70189cfde7c48cb923.ics' );
+                if ( 'https://wiki.sachsen.pfadfinden.de/rest/calendar-services/1.0/calendar/export/subcalendar/private/ff69f5a689391ac0d7f78a70189cfde7c48cb923.ics' !== $calendar_connection ) {
+                    update_option( 'kronos_calendar_url', $calendar_connection );
+                }
+                delete_option( 'bdp_calendar_source_url' );
+
+
+                kompass_install_plugin( 'https://repos.contelli.de/plugins/kronos/download', 'kronos' );
+
+
+            }
+        } else {
+            $install_link = admin_url( 'admin.php?page=kompass-calendar&install=true' );
+            require dirname( __FILE__ ) . '/../views/install-item.php';
+        }
+    }
+
+    public static function install_events ()
+    {
+        if ( isset( $_REQUEST[ 'install' ] ) ) {
+            if ( !file_exists( dirname( BDP_LV_STARTUP_FILE ) . '/../solea/solea.php' ) ) {
+                kompass_install_plugin( 'https://repos.contelli.de/plugins/solea/download', 'solea' );
+            }
+        } else {
+            $install_link = admin_url( 'admin.php?page=kompass-events&install=true' );
+            require dirname( __FILE__ ) . '/../views/install-item.php';
+        }
+    }
+}
\ No newline at end of file
diff --git a/modules/plugin-installer/Controllers/class-outdatedmodule.php b/modules/plugin-installer/Controllers/class-outdatedmodule.php
new file mode 100644
index 0000000..0de638b
--- /dev/null
+++ b/modules/plugin-installer/Controllers/class-outdatedmodule.php
@@ -0,0 +1,21 @@
+<?php
+/**
+ * File: class-outdatedmodule.php
+ *
+ *
+ * @since 2024-08-12
+ * @license GPL-3.0-or-later
+ *
+ * @package
+ */
+
+namespace Bdp\Modules\PluginInstaller\Controllers;
+
+class OutdatedModule
+{
+    public static function calender() {
+        $module = 'Kalender';
+        $install_url = admin_url('admin.php?page=kompass-calendar');
+        require dirname(__FILE__) . '/../views/outdated-component.php';
+    }
+}
\ No newline at end of file
diff --git a/modules/plugin-installer/views/install-item.php b/modules/plugin-installer/views/install-item.php
new file mode 100644
index 0000000..b1433b8
--- /dev/null
+++ b/modules/plugin-installer/views/install-item.php
@@ -0,0 +1,20 @@
+<?php
+/**
+ * File: install-item.php
+ *
+ *
+ * @since 2024-08-12
+ * @license GPL-3.0-or-later
+ *
+ * @package
+ */
+
+?>
+
+<div style="width: 80%; margin: 50px auto; border-style: solid; border-width: 2px; border-color: #1d4899; padding: 10px;">
+    Um die gewünschte Komponente zu aktivieren, klicke bitte hier auf aktivieren.<br />
+    kompass führt dabei die Installation im Hintergrund durch.
+    <div style="text-align: center">
+        <a href="<?php echo $install_link; ?>" class="button bdp-newplugin-button">Jetzt installieren</a>
+    </div>
+</div>
diff --git a/modules/plugin-installer/views/outdated-component.php b/modules/plugin-installer/views/outdated-component.php
new file mode 100644
index 0000000..18f9322
--- /dev/null
+++ b/modules/plugin-installer/views/outdated-component.php
@@ -0,0 +1,18 @@
+<?php
+/**
+ * File: outdated-component.php
+ *
+ *
+ * @since 2024-08-12
+ * @license GPL-3.0-or-later
+ *
+ * @package
+ */
+
+?>
+
+<div style="padding: 10px 10px; font-size: 15pt; margin-top: 20px; line-height: 30px; background-color: #fafafa; border-left: #f10905 10px solid;">
+    kompass hat festgestellt, dass du die Komponente <?php echo esc_html($module); ?> nutzt, die nicht weiterentwickelt wird.<br />
+    Es steht eine neue Version bereit, bitte klicke <a href="<?php echo esc_url($install_url); ?>">hier</a>, um die Aktualisierung durchzuführen.
+</div>
+
diff --git a/style.css b/style.css
index 5f0eb16..7aba2c4 100644
--- a/style.css
+++ b/style.css
@@ -50,4 +50,4 @@ wp-submenu ul,
 #wp-admin-bar-wp-logo
 {
     display: none;
-}
\ No newline at end of file
+}