On manage page added action icon for changing attendance.

renderer.php

@@ -221,6 +221,8 @@ class mod_attforblock_renderer extends plugin_renderer_base {
 
                 $date = html_writer::link($url, $date, array('title' => $title));
                 $time = html_writer::link($url, $time, array('title' => $title));
+
+                $actions = $this->output->action_icon($url, new pix_icon('redo', $title, 'attforblock'));
             } else {
                 $date = '<i>' . $date . '</i>';
                 $time = '<i>' . $time . '</i>';

styles.css

@@ -118,4 +118,8 @@
 
 #page-mod-attforblock-preferences .generalbox {
     text-align: center;
+}
+
+.path-mod-attforblock .attsessions_manage_table .action-icon img.smallicon {
+    margin-left: 5px;
 }