diff --git a/htdocs/comm/action/list.php b/htdocs/comm/action/list.php
index 2391f9ca491..be841ea8506 100644
--- a/htdocs/comm/action/list.php
+++ b/htdocs/comm/action/list.php
@@ -5,6 +5,7 @@
  * Copyright (C) 2005-2012 Regis Houssin        <regis.houssin@inodbox.com>
  * Copyright (C) 2017      Open-DSI             <support@open-dsi.fr>
  * Copyright (C) 2018       Frédéric France         <frederic.france@netlogic.fr>
+ * Copyright (C) 2020		Tobias Sekan		<tobias.sekan@startmail.com>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -40,6 +41,7 @@ require_once DOL_DOCUMENT_ROOT.'/core/class/extrafields.class.php';
 $langs->loadLangs(array("users", "companies", "agenda", "commercial", "other"));
 
 $action = GETPOST('action', 'alpha');
+$massaction = GETPOST('massaction', 'alpha');
 $contextpage = GETPOST('contextpage', 'aZ') ?GETPOST('contextpage', 'aZ') : 'actioncommlist'; // To manage different context of search
 $resourceid = GETPOST("search_resourceid", "int") ?GETPOST("search_resourceid", "int") : GETPOST("resourceid", "int");
 $pid = GETPOST("search_projectid", 'int', 3) ?GETPOST("search_projectid", 'int', 3) : GETPOST("projectid", 'int', 3);
@@ -49,6 +51,8 @@ $optioncss = GETPOST('optioncss', 'alpha');
 $year = GETPOST("year", 'int');
 $month = GETPOST("month", 'int');
 $day = GETPOST("day", 'int');
+$toselect = GETPOST('toselect', 'array');
+
 // Set actioncode (this code must be same for setting actioncode into peruser, listacton and index)
 if (GETPOST('search_actioncode', 'array'))
 {
@@ -185,9 +189,42 @@ if (GETPOST('button_removefilter_x', 'alpha') || GETPOST('button_removefilter.x'
     $datestart = '';
     $dateend = '';
     $search_status = '';
+	$toselect = '';
     $search_array_options = array();
 }
 
+if (empty($reshook) && !empty($massaction))
+{
+	unset($percent);
+
+	switch ($massaction)
+	{
+		case 'set_all_events_to_todo':
+			$percent = ActionComm::EVENT_TODO;
+			break;
+
+		case 'set_all_events_to_in_progress':
+			$percent = ActionComm::EVENT_IN_PROGRESS;
+			break;
+
+		case 'set_all_events_to_finished':
+			$percent = ActionComm::EVENT_FINISHED;
+			break;
+	}
+
+	if(isset($percent))
+	{
+		foreach ($toselect as $toselectid)
+		{
+			$result = $object->updatePercent($toselectid, $percent);
+			if($result < 0)
+			{
+				dol_print_error($db);
+				break;
+			}
+		}
+	}
+}
 
 /*
  *  View
@@ -239,6 +276,15 @@ if ($optioncss != '') $param .= '&optioncss='.urlencode($optioncss);
 // Add $param from extra fields
 include DOL_DOCUMENT_ROOT.'/core/tpl/extrafields_list_search_param.tpl.php';
 
+// List of mass actions available
+$arrayofmassactions = array(
+	'set_all_events_to_todo' => $langs->trans("SetAllEventsToTodo"),
+	'set_all_events_to_in_progress' => $langs->trans("SetAllEventsToInProgress"),
+	'set_all_events_to_finished' => $langs->trans("SetAllEventsToFinished"),
+);
+
+$massactionbutton = $form->selectMassAction('', $arrayofmassactions);
+
 $sql = "SELECT";
 if ($usergroup > 0) $sql .= " DISTINCT";
 $sql .= " s.nom as societe, s.rowid as socid, s.client, s.email as socemail,";
@@ -366,6 +412,8 @@ if ($resql)
 
 	$num = $db->num_rows($resql);
 
+	$arrayofselected = is_array($toselect) ? $toselect : array();
+
 	// Local calendar
 	$newtitle = '<div class="nowrap clear inline-block minheight20"><input type="checkbox" id="check_mytasks" name="check_mytasks" checked disabled> '.$langs->trans("LocalAgenda").' &nbsp; </div>';
 	//$newtitle=$langs->trans($title);
@@ -436,7 +484,7 @@ if ($resql)
         $newcardbutton .= dolGetButtonTitle($langs->trans('AddAction'), '', 'fa fa-plus-circle', DOL_URL_ROOT.'/comm/action/card.php?action=create&datep='.sprintf("%04d%02d%02d", $tmpforcreatebutton['year'], $tmpforcreatebutton['mon'], $tmpforcreatebutton['mday']).$hourminsec.'&backtopage='.urlencode($_SERVER["PHP_SELF"].($newparam ? '?'.$newparam : '')));
     }
 
-    print_barre_liste($s, $page, $_SERVER["PHP_SELF"], $param, $sortfield, $sortorder, '', $num, -1 * $nbtotalofrecords, '', 0, $nav.$newcardbutton, '', $limit, 0, 0, 1);
+    print_barre_liste($s, $page, $_SERVER["PHP_SELF"], $param, $sortfield, $sortorder, $massactionbutton, $num, -1 * $nbtotalofrecords, '', 0, $nav.$newcardbutton, '', $limit, 0, 0, 1);
 
     $moreforfilter = '';
 
@@ -740,7 +788,15 @@ if ($resql)
 			$datep = $db->jdate($obj->datep);
 			print '<td align="center" class="nowrap">'.$actionstatic->LibStatut($obj->percent, 5, 0, $datep).'</td>';
 		}
-		print '<td></td>';
+		// Action column
+		print '<td class="nowrap center">';
+		if ($massactionbutton || $massaction)   // If we are in select mode (massactionbutton defined) or if we have already selected and sent an action ($massaction) defined
+		{
+			$selected = 0;
+			if (in_array($obj->id, $arrayofselected)) $selected = 1;
+			print '<input id="cb'.$obj->id.'" class="flat checkforselect" type="checkbox" name="toselect[]" value="'.$obj->id.'"'.($selected ? ' checked="checked"' : '').'>';
+		}
+		print '</td>';
 
 		print "</tr>\n";
 		$i++;