diff --git a/htdocs/projet/ganttview.php b/htdocs/projet/ganttview.php
index c5e5b20fb88..b5325ca93b2 100644
--- a/htdocs/projet/ganttview.php
+++ b/htdocs/projet/ganttview.php
@@ -89,6 +89,7 @@ if (!empty($conf->global->MAIN_HTML_TITLE) && preg_match('/projectnameonly/', $c
 	$title = ($object->ref ? $object->ref.' '.$object->name.' - ' : '').$langs->trans("Gantt");
 }
 $help_url = "EN:Module_Projects|FR:Module_Projets|ES:Módulo_Proyectos";
+
 llxHeader("", $title, $help_url, '', 0, 0, $arrayofjs, $arrayofcss);
 
 if (($id > 0 && is_numeric($id)) || !empty($ref)) {
@@ -136,29 +137,36 @@ if (($id > 0 && is_numeric($id)) || !empty($ref)) {
 	print '<table class="border tableforfield centpercent">';
 
 	// Usage
-	print '<tr><td class="tdtop">';
-	print $langs->trans("Usage");
-	print '</td>';
-	print '<td>';
-	if (!empty($conf->global->PROJECT_USE_OPPORTUNITIES)) {
-		print '<input type="checkbox" disabled name="usage_opportunity"'.(GETPOSTISSET('usage_opportunity') ? (GETPOST('usage_opportunity', 'alpha') != '' ? ' checked="checked"' : '') : ($object->usage_opportunity ? ' checked="checked"' : '')).'"> ';
-		$htmltext = $langs->trans("ProjectFollowOpportunity");
-		print $form->textwithpicto($langs->trans("ProjectFollowOpportunity"), $htmltext);
-		print '<br>';
+	if (!empty($conf->global->PROJECT_USE_OPPORTUNITIES) || empty($conf->global->PROJECT_HIDE_TASKS) || !empty($conf->eventorganization->enabled)) {
+		print '<tr><td class="tdtop">';
+		print $langs->trans("Usage");
+		print '</td>';
+		print '<td>';
+		if (!empty($conf->global->PROJECT_USE_OPPORTUNITIES)) {
+			print '<input type="checkbox" disabled name="usage_opportunity"'.(GETPOSTISSET('usage_opportunity') ? (GETPOST('usage_opportunity', 'alpha') != '' ? ' checked="checked"' : '') : ($object->usage_opportunity ? ' checked="checked"' : '')).'"> ';
+			$htmltext = $langs->trans("ProjectFollowOpportunity");
+			print $form->textwithpicto($langs->trans("ProjectFollowOpportunity"), $htmltext);
+			print '<br>';
+		}
+		if (empty($conf->global->PROJECT_HIDE_TASKS)) {
+			print '<input type="checkbox" disabled name="usage_task"'.(GETPOSTISSET('usage_task') ? (GETPOST('usage_task', 'alpha') != '' ? ' checked="checked"' : '') : ($object->usage_task ? ' checked="checked"' : '')).'"> ';
+			$htmltext = $langs->trans("ProjectFollowTasks");
+			print $form->textwithpicto($langs->trans("ProjectFollowTasks"), $htmltext);
+			print '<br>';
+		}
+		if (empty($conf->global->PROJECT_HIDE_TASKS) && !empty($conf->global->PROJECT_BILL_TIME_SPENT)) {
+			print '<input type="checkbox" disabled name="usage_bill_time"'.(GETPOSTISSET('usage_bill_time') ? (GETPOST('usage_bill_time', 'alpha') != '' ? ' checked="checked"' : '') : ($object->usage_bill_time ? ' checked="checked"' : '')).'"> ';
+			$htmltext = $langs->trans("ProjectBillTimeDescription");
+			print $form->textwithpicto($langs->trans("BillTime"), $htmltext);
+			print '<br>';
+		}
+		if (!empty($conf->eventorganization->enabled)) {
+			print '<input type="checkbox" disabled name="usage_organize_event"'.(GETPOSTISSET('usage_organize_event') ? (GETPOST('usage_organize_event', 'alpha') != '' ? ' checked="checked"' : '') : ($object->usage_organize_event ? ' checked="checked"' : '')).'"> ';
+			$htmltext = $langs->trans("EventOrganizationDescriptionLong");
+			print $form->textwithpicto($langs->trans("ManageOrganizeEvent"), $htmltext);
+		}
+		print '</td></tr>';
 	}
-	if (empty($conf->global->PROJECT_HIDE_TASKS)) {
-		print '<input type="checkbox" disabled name="usage_task"'.(GETPOSTISSET('usage_task') ? (GETPOST('usage_task', 'alpha') != '' ? ' checked="checked"' : '') : ($object->usage_task ? ' checked="checked"' : '')).'"> ';
-		$htmltext = $langs->trans("ProjectFollowTasks");
-		print $form->textwithpicto($langs->trans("ProjectFollowTasks"), $htmltext);
-		print '<br>';
-	}
-	if (!empty($conf->global->PROJECT_BILL_TIME_SPENT)) {
-		print '<input type="checkbox" disabled name="usage_bill_time"'.(GETPOSTISSET('usage_bill_time') ? (GETPOST('usage_bill_time', 'alpha') != '' ? ' checked="checked"' : '') : ($object->usage_bill_time ? ' checked="checked"' : '')).'"> ';
-		$htmltext = $langs->trans("ProjectBillTimeDescription");
-		print $form->textwithpicto($langs->trans("BillTime"), $htmltext);
-		print '<br>';
-	}
-	print '</td></tr>';
 
 	// Visibility
 	print '<tr><td class="titlefield">'.$langs->trans("Visibility").'</td><td>';
diff --git a/htdocs/projet/tasks.php b/htdocs/projet/tasks.php
index d4b5bf89bbf..d266d659da7 100644
--- a/htdocs/projet/tasks.php
+++ b/htdocs/projet/tasks.php
@@ -459,7 +459,7 @@ if ($id > 0 || !empty($ref)) {
 	print '<div class="fichehalfleft">';
 	print '<div class="underbanner clearboth"></div>';
 
-	print '<table class="border tableforfield" width="100%">';
+	print '<table class="border tableforfield centpercent">';
 
 	// Usage
 	if (!empty($conf->global->PROJECT_USE_OPPORTUNITIES) || empty($conf->global->PROJECT_HIDE_TASKS) || !empty($conf->eventorganization->enabled)) {
@@ -532,7 +532,7 @@ if ($id > 0 || !empty($ref)) {
 	print '<div class="ficheaddleft">';
 	print '<div class="underbanner clearboth"></div>';
 
-	print '<table class="border tableforfield" width="100%">';
+	print '<table class="border tableforfield centpercent">';
 
 	// Description
 	print '<td class="titlefield tdtop">'.$langs->trans("Description").'</td><td>';
@@ -541,7 +541,7 @@ if ($id > 0 || !empty($ref)) {
 
 	// Categories
 	if ($conf->categorie->enabled) {
-		print '<tr><td valign="middle">'.$langs->trans("Categories").'</td><td>';
+		print '<tr><td class="valignmiddle">'.$langs->trans("Categories").'</td><td>';
 		print $form->showCategories($object->id, Categorie::TYPE_PROJECT, 1);
 		print "</td></tr>";
 	}