diff --git a/htdocs/bom/bom_card.php b/htdocs/bom/bom_card.php
index 71c64087419..85ce0a0366d 100644
--- a/htdocs/bom/bom_card.php
+++ b/htdocs/bom/bom_card.php
@@ -627,13 +627,13 @@ if ($object->id > 0 && (empty($action) || ($action != 'edit' && $action != 'crea
 					return false;
 				});
 
-				//TODO : SHOW ALL / COLLAPSE ALL
+				//To Show all the sub bom lines
 				$("#show_all").click(function() {
 					$("[class^=sub_bom_lines]").show();
 					$("[class^=collapse_bom]").html('(-) ');
 					return false;
 				});
-
+				//To Hide all the sub bom lines
 				$("#hide_all").click(function() {
 					$("[class^=sub_bom_lines]").hide();
 					$("[class^=collapse_bom]").html('(+) ');
diff --git a/htdocs/bom/tpl/objectline_title.tpl.php b/htdocs/bom/tpl/objectline_title.tpl.php
index 0656f23aed9..ce811096d33 100644
--- a/htdocs/bom/tpl/objectline_title.tpl.php
+++ b/htdocs/bom/tpl/objectline_title.tpl.php
@@ -45,6 +45,8 @@ print "<thead>\n";
 print '<tr class="liste_titre nodrag nodrop">';
 print '<a id="show_all" href="#">'.img_picto('', 'folder-open', 'class="paddingright"').$langs->trans("ExpandAll").'</a>&nbsp;&nbsp;';
 print '<a id="hide_all" href="#">'.img_picto('', 'folder', 'class="paddingright"').$langs->trans("UndoExpandAll").'</a>&nbsp;';
+$form = new Form($object->db);
+print $form->textwithpicto('', $langs->trans('CollapseBOMHelp'), 1, 'help', '');
 
 // Adds a line numbering column
 if (!empty($conf->global->MAIN_VIEW_LINE_NUMBER)) {
diff --git a/htdocs/langs/en_US/mrp.lang b/htdocs/langs/en_US/mrp.lang
index 8aaf345feed..c414a219894 100644
--- a/htdocs/langs/en_US/mrp.lang
+++ b/htdocs/langs/en_US/mrp.lang
@@ -101,4 +101,6 @@ HumanMachine=Human / Machine
 WorkstationArea=Workstation area
 Machines=Machines
 THMEstimatedHelp=This rate makes it possible to define a forecast cost of the item
-BOM=Nomenclature
+BOM=Bill Of Materials
+CollapseBOMHelp=You can define the default display of the details of the nomenclature in the configuration of the BOM module
+
diff --git a/htdocs/langs/fr_FR/mrp.lang b/htdocs/langs/fr_FR/mrp.lang
index 2db57d53bfb..12873fd5093 100644
--- a/htdocs/langs/fr_FR/mrp.lang
+++ b/htdocs/langs/fr_FR/mrp.lang
@@ -102,3 +102,4 @@ WorkstationArea=Espace Poste de travail
 Machines=Machines
 THMEstimatedHelp=Ce taux permet de définir un coût prévisionnel de l'article
 BOM=Nomenclature
+CollapseBOMHelp=Vous pouvez définir l'affichage par défaut du détail des nomenclature dans la configuration du module "Nomenclature Produits"