diff --git a/class-tgm-plugin-activation.php b/class-tgm-plugin-activation.php
index e26ceafd..48e29ea8 100755
--- a/class-tgm-plugin-activation.php
+++ b/class-tgm-plugin-activation.php
@@ -351,14 +351,26 @@ public function admin_menu() {
 
             foreach ( $this->plugins as $plugin ) {
                 if ( ! is_plugin_active( $plugin['file_path'] ) ) {
-                    add_theme_page(
-                        $this->strings['page_title'],          // Page title.
-                        $this->strings['menu_title'],          // Menu title.
-                        'edit_theme_options',                  // Capability.
-                        $this->menu,                           // Menu slug.
-                        array( $this, 'install_plugins_page' ) // Callback.
-                    );
-                break;
+
+                    $args = apply_filters(
+                    	'tgmpa_admin_menu_args',
+                    	array(
+	                        'parent_slug'=> 'themes.php',                          // Parent Menu slug.
+	                        'page_title' => $this->strings['page_title'],          // Page title.
+	                        'menu_title' => $this->strings['menu_title'],          // Menu title.
+	                        'capability' => 'edit_theme_options',                  // Capability.
+	                        'menu_slug'  => $this->menu,                           // Menu slug.
+	                        'function'   => array( $this, 'install_plugins_page' ) // Callback.
+	                    )
+					);
+
+                    if( apply_filters( 'tgmpa_admin_menu_use_add_theme_page', true ) ) {
+                        add_theme_page($args['page_title'], $args['menu_title'], $args['capability'], $args['menu_slug'], $args['function']);
+                    } else {
+                        add_submenu_page( $args['parent_slug'], $args['page_title'], $args['menu_title'], $args['capability'], $args['menu_slug'], $args['function']);
+                    }
+
+                    break;
                 }
             }
 
@@ -616,7 +628,7 @@ public function notices() {
 
             foreach ( $this->plugins as $plugin ) {
                 // If the plugin is installed and active, check for minimum version argument before moving forward.
-                if ( is_plugin_active( $plugin['file_path'] ) ) {
+                if ( is_plugin_active( $plugin['file_path'] ) || ( isset( $plugin['is_callable'] ) && is_callable( $plugin['is_callable'] ) ) ) {
                     // A minimum version has been specified.
                     if ( isset( $plugin['version'] ) ) {
                         if ( isset( $installed_plugins[$plugin['file_path']]['Version'] ) ) {
@@ -748,7 +760,7 @@ public function notices() {
 
                 $action_links = array_filter( $action_links ); // Remove any empty array items.
                 if ( $action_links ) {
-                    $rendered .= '<p>' . implode( ' | ', $action_links ) . '</p>';
+                    $rendered .= apply_filters( 'tgmpa_notice_rendered_action_links', '<p>' . implode( ' | ', $action_links ) . '</p>' );
                 }
 
                 // Register the nag messages and prepare them to be processed.
@@ -1133,7 +1145,7 @@ protected function _gather_plugin_data() {
             $installed_plugins = get_plugins();
 
             foreach ( TGM_Plugin_Activation::$instance->plugins as $plugin ) {
-                if ( is_plugin_active( $plugin['file_path'] ) ) {
+                if ( is_plugin_active( $plugin['file_path'] ) || ( isset( $plugin['is_callable'] ) && is_callable( $plugin['is_callable'] ) ) ) {
                     continue; // No need to display plugins if they are installed and activated.
                 }
 
@@ -1193,6 +1205,8 @@ protected function _gather_plugin_data() {
                 $table_data[$i]['file_path'] = $plugin['file_path'];
                 $table_data[$i]['url']       = isset( $plugin['source'] ) ? $plugin['source'] : 'repo';
 
+                $table_data[$i] = apply_filters( 'tgmpa_table_data_item', $table_data[$i], $plugin );
+
                 $i++;
             }
 
@@ -1380,7 +1394,7 @@ public function get_columns() {
                 'status' => __( 'Status', 'tgmpa' )
             );
 
-            return $columns;
+            return apply_filters( 'tgmpa_table_columns', $columns );
 
         }