diff --git a/htdocs/admin/defaultvalues.php b/htdocs/admin/defaultvalues.php
index 984ddfbefd7..2e4d25ae294 100644
--- a/htdocs/admin/defaultvalues.php
+++ b/htdocs/admin/defaultvalues.php
@@ -1,5 +1,5 @@
 <?php
-/* Copyright (C) 2017		Laurent Destailleur	<eldy@users.sourceforge.net>
+/* Copyright (C) 2017-2018	Laurent Destailleur	<eldy@users.sourceforge.net>
  * Copyright (C) 2017-2018	Regis Houssin		<regis.houssin@capnetworks.com>
  *
  * This program is free software; you can redistribute it and/or modify
@@ -17,8 +17,13 @@
  */
 
 /**
- *       \file       htdocs/admin/defaultvalues.php
- *       \brief      Page to set default values used used in a create form
+ *       \file      htdocs/admin/defaultvalues.php
+ *       \brief     Page to set default values used used in a create form
+ *       			Default values are stored into $user->default_values[url]['createform']['querystring'|'_noquery_'][paramkey]=paramvalue
+ *       			Default filters are stored into $user->default_values[url]['filters']['querystring'|'_noquery_'][paramkey]=paramvalue
+ *       			Default sort order are stored into $user->default_values[url]['sortorder']['querystring'|'_noquery_'][paramkey]=paramvalue
+ *       			Default focus are stored into $user->default_values[url]['focus']['querystring'|'_noquery_'][paramkey]=paramvalue
+ *       			Mandatory fields are stored into $user->default_values[url]['mandatory']['querystring'|'_noquery_'][paramkey]=paramvalue
  */
 
 require '../main.inc.php';
@@ -234,6 +239,10 @@ if ($mode == 'focus')
 {
     print info_admin($langs->trans("FeatureNotYetAvailable")).'<br>';
 }
+if ($mode == 'mandatory')
+{
+	print info_admin($langs->trans("FeatureNotYetAvailable")).'<br>';
+}
 
 print '<input type="hidden" name="token" value="'.$_SESSION['newtoken'].'">';
 print '<input type="hidden" id="action" name="action" value="">';
@@ -261,7 +270,7 @@ else
 }
 print_liste_field_titre($textkey,$_SERVER["PHP_SELF"],'param','',$param,'',$sortfield,$sortorder);
 // Value
-if ($mode != 'focus')
+if ($mode != 'focus' && $mode != 'mandatory')
 {
     if ($mode != 'sortorder')
     {
@@ -301,7 +310,7 @@ print '<td>';
 print '<input type="text" class="flat maxwidth100onsmartphone" name="defaultkey" value="">';
 print '</td>';
 // Value
-if ($mode != 'focus')
+if ($mode != 'focus' && $mode != 'mandatory')
 {
     print '<td>';
     print '<input type="text" class="flat maxwidth100onsmartphone" name="defaultvalue" value="">';
@@ -313,13 +322,14 @@ if (! empty($conf->multicompany->enabled) && !$user->entity)
 	print '<td>';
 	print '<input type="text" class="flat" size="1" name="entity" value="'.$conf->entity.'">';
 	print '</td>';
-	print '<td align="center">';
 }
 else
 {
 	print '<td align="center">';
 	print '<input type="hidden" name="entity" value="'.$conf->entity.'">';
+	print '</td>';
 }
+print '<td align="center">';
 $disabled='';
 if (empty($conf->global->MAIN_ENABLE_DEFAULT_VALUES)) $disabled=' disabled="disabled"';
 print '<input type="submit" class="button"'.$disabled.' value="'.$langs->trans("Add").'" name="add">';
@@ -363,7 +373,7 @@ if ($result)
 		print '</td>'."\n";
 
 		// Value
-		if ($mode != 'focus')
+		if ($mode != 'focus' && $mode != 'mandatory')
 		{
     		print '<td>';
     		/*print '<input type="hidden" name="const['.$i.'][rowid]" value="'.$obj->rowid.'">';
@@ -376,6 +386,9 @@ if ($result)
     		print '</td>';
 		}
 
+		// Multicompany
+		print '<td></td>';
+
 		// Actions
 		print '<td align="center">';
 		if ($action != 'edit' || GETPOST('rowid') != $obj->rowid)
diff --git a/htdocs/core/lib/admin.lib.php b/htdocs/core/lib/admin.lib.php
index c900a30ea18..4014adfc272 100644
--- a/htdocs/core/lib/admin.lib.php
+++ b/htdocs/core/lib/admin.lib.php
@@ -729,6 +729,11 @@ function defaultvalues_prepare_head()
     $head[$h][2] = 'focus';
     $h++;
 
+    $head[$h][0] = DOL_URL_ROOT."/admin/defaultvalues.php?mode=mandatory";
+    $head[$h][1] = $langs->trans("DefaultMandatory");
+    $head[$h][2] = 'mandatory';
+    $h++;
+
     /*$head[$h][0] = DOL_URL_ROOT."/admin/translation.php?mode=searchkey";
     $head[$h][1] = $langs->trans("TranslationKeySearch");
     $head[$h][2] = 'searchkey';
diff --git a/htdocs/core/lib/functions.lib.php b/htdocs/core/lib/functions.lib.php
index 8b7e4b70c63..22291c6b4d8 100644
--- a/htdocs/core/lib/functions.lib.php
+++ b/htdocs/core/lib/functions.lib.php
@@ -430,7 +430,7 @@ function GETPOST($paramname, $check='none', $method=0, $filter=null, $options=nu
 						}
 						elseif (isset($user->default_values[$relativepathstring]['filters']))
 						{
-							foreach($user->default_values[$relativepathstring]['filters'] as $defkey => $defval)
+							foreach($user->default_values[$relativepathstring]['filters'] as $defkey => $defval)	// $defkey is a querystring like 'a=b&c=d', $defval is key of user
 							{
 								$qualified = 0;
 								if ($defkey != '_noquery_')
@@ -586,7 +586,6 @@ function GETPOST($paramname, $check='none', $method=0, $filter=null, $options=nu
 	// Save data into session if key start with 'search_' or is 'smonth', 'syear', 'month', 'year'
 	if (empty($method) || $method == 3 || $method == 4)
 	{
-		//if (preg_match('/^search_/', $paramname) || in_array($paramname, array('sortorder', 'sortfield", 'smonth', 'syear', 'month', 'year')))
 		if (preg_match('/^search_/', $paramname) || in_array($paramname, array('sortorder','sortfield')))
 		{
 			//var_dump($paramname.' - '.$out.' '.$user->default_values[$relativepathstring]['filters'][$paramname]);
@@ -595,8 +594,7 @@ function GETPOST($paramname, $check='none', $method=0, $filter=null, $options=nu
 			// - posted value not empty, or
 			// - if posted value is empty and a default value exists that is not empty (it means we did a filter to an empty value when default was not).
 
-			//if (! empty($out) || ! empty($user->default_values[$relativepathstring]['filters'][$paramname]))
-			if ($out != '')		// $out = '0' like 'abc' is a search criteria to keep
+			if ($out != '')		// $out = '0' or 'abc', it is a search criteria to keep
 			{
 				$user->lastsearch_values_tmp[$relativepathstring][$paramname]=$out;
 			}
diff --git a/htdocs/langs/en_US/admin.lang b/htdocs/langs/en_US/admin.lang
index 90305eeab3b..af1ba72f8f6 100644
--- a/htdocs/langs/en_US/admin.lang
+++ b/htdocs/langs/en_US/admin.lang
@@ -1437,6 +1437,7 @@ DefaultCreateForm=Default values (on forms to create)
 DefaultSearchFilters=Default search filters
 DefaultSortOrder=Default sort orders
 DefaultFocus=Default focus fields
+DefaultMandatory=Mandatory form fields
 ##### Products #####
 ProductSetup=Products module setup
 ServiceSetup=Services module setup