diff --git a/htdocs/core/class/html.formticket.class.php b/htdocs/core/class/html.formticket.class.php
index 8920b259489..4a140185432 100644
--- a/htdocs/core/class/html.formticket.class.php
+++ b/htdocs/core/class/html.formticket.class.php
@@ -332,7 +332,7 @@ class FormTicket
 
 		// Type of Ticket
 		print '<tr><td class="titlefield"><span class="fieldrequired"><label for="selecttype_code">'.$langs->trans("TicketTypeRequest").'</span></label></td><td>';
-		$this->selectTypesTickets((GETPOST('type_code', 'alpha') ? GETPOST('type_code', 'alpha') : $this->type_code), 'type_code', '', 2, 1, 0, 0, 'minwidth200');
+		$this->selectTypesTickets((GETPOST('type_code', 'alpha') ? GETPOST('type_code', 'alpha') : $this->type_code), 'type_code', '', 2, 'ifone', 0, 0, 'minwidth200');
 		print '</td></tr>';
 
 		// Group => Category
@@ -342,12 +342,12 @@ class FormTicket
 			$filter = 'public=1';
 		}
 		$selected = (GETPOST('category_code') ? GETPOST('category_code') : $this->category_code);
-		$this->selectGroupTickets($selected, 'category_code', $filter, 2, 1, 0, 0, 'minwidth200');
+		$this->selectGroupTickets($selected, 'category_code', $filter, 2, 'ifone', 0, 0, 'minwidth200');
 		print '</td></tr>';
 
 		// Severity => Priority
 		print '<tr><td><span class="fieldrequired"><label for="selectseverity_code">'.$langs->trans("TicketSeverity").'</span></label></td><td>';
-		$this->selectSeveritiesTickets((GETPOST('severity_code') ? GETPOST('severity_code') : $this->severity_code), 'severity_code', '', 2, 1);
+		$this->selectSeveritiesTickets((GETPOST('severity_code') ? GETPOST('severity_code') : $this->severity_code), 'severity_code', '', 2, 'ifone');
 		print '</td></tr>';
 
 		if (!empty($conf->knowledgemanagement->enabled)) {
@@ -690,8 +690,8 @@ class FormTicket
 	 *      @param  string|array	$selected		Id of preselected field or array of Ids
 	 *      @param  string			$htmlname		Nom de la zone select
 	 *      @param  string			$filtertype		To filter on field type in llx_c_ticket_type (array('code'=>xx,'label'=>zz))
-	 *      @param  int				$format			0=id+libelle, 1=code+code, 2=code+libelle, 3=id+code
-	 *      @param  int				$empty			1=peut etre vide, 0 sinon
+	 *      @param  int				$format			0=id+label, 1=code+code, 2=code+label, 3=id+code
+	 *      @param  int|string		$empty      	1 = can be empty or 'string' to show the string as the empty value, 0 = can't be empty, 'ifone' = can be empty but autoselected if there is one only
 	 *      @param  int				$noadmininfo	0=Add admin info, 1=Disable admin info
 	 *      @param  int				$maxlength		Max length of label
 	 *      @param	string			$morecss		More CSS
@@ -715,9 +715,9 @@ class FormTicket
 
 		$ticketstat->loadCacheTypesTickets();
 
-		print '<select id="select'.$htmlname.'" class="flat minwidth100'.($morecss ? ' '.$morecss : '').'" name="'.$htmlname.($multiselect?'[]':'').'"'.($multiselect?' multiple':'').'>';
-		if ($empty && !$multiselect) {
-			print '<option value="">&nbsp;</option>';
+		print '<select id="select'.$htmlname.'" class="flat minwidth100'.($morecss ? ' '.$morecss : '').'" name="'.$htmlname.($multiselect ? '[]' : '').'"'.($multiselect ? ' multiple' : '').'>';
+		if ($empty) {
+			print '<option value="">'.((is_numeric($empty) || $empty == 'ifone') ? '&nbsp;' : $empty).'</option>';
 		}
 
 		if (is_array($ticketstat->cache_types_tickets) && count($ticketstat->cache_types_tickets)) {
@@ -755,6 +755,8 @@ class FormTicket
 					print ' selected="selected"';
 				} elseif ($arraytypes['use_default'] == "1" && empty($selected) && !$multiselect) {
 					print ' selected="selected"';
+				} elseif (count($ticketstat->cache_types_tickets) == 1 && (!$empty || $empty == 'ifone')) {	// If only 1 choice, we autoselect it
+					print ' selected="selected"';
 				}
 
 				print '>';
@@ -813,10 +815,10 @@ class FormTicket
 		$ticketstat = new Ticket($this->db);
 		$ticketstat->loadCacheCategoriesTickets($publicgroups ? 1 : -1);	// get list of active ticket groups
 
-		if ($use_multilevel <= 0) {
+		if ($use_multilevel <= 0) {	// Only one combo list to select the group of ticket (default)
 			print '<select id="select'.$htmlname.'" class="flat minwidth100'.($morecss ? ' '.$morecss : '').'" name="'.$htmlname.'">';
 			if ($empty) {
-				print '<option value="">&nbsp;</option>';
+				print '<option value="">'.((is_numeric($empty) || $empty == 'ifone') ? '&nbsp;' : $empty).'</option>';
 			}
 
 			if (is_array($ticketstat->cache_category_tickets) && count($ticketstat->cache_category_tickets)) {
@@ -861,9 +863,9 @@ class FormTicket
 						print ' selected="selected"';
 					} elseif (isset($selected) && $selected == $id) {
 						print ' selected="selected"';
-					} elseif ($arraycategories['use_default'] == "1" && !$selected && !$empty) {
+					} elseif ($arraycategories['use_default'] == "1" && !$selected && (!$empty || $empty == 'ifone')) {
 						print ' selected="selected"';
-					} elseif (count($ticketstat->cache_category_tickets) == 1) {
+					} elseif (count($ticketstat->cache_category_tickets) == 1 && (!$empty || $empty == 'ifone')) {
 						print ' selected="selected"';
 					}
 
@@ -1135,14 +1137,14 @@ class FormTicket
 	/**
 	 *      Return html list of ticket severitys (priorities)
 	 *
-	 *      @param  string  $selected    Id severity pre-selected
-	 *      @param  string  $htmlname    Name of the select area
-	 *      @param  string  $filtertype  To filter on field type in llx_c_ticket_severity (array('code'=>xx,'label'=>zz))
-	 *      @param  int     $format      0 = id+label, 1 = code+code, 2 = code+label, 3 = id+code
-	 *      @param  int     $empty       1 = can be empty, 0 = or not
-	 *      @param  int     $noadmininfo 0 = add admin info, 1 = disable admin info
-	 *      @param  int     $maxlength   Max length of label
-	 *      @param  string  $morecss     More CSS
+	 *      @param  string  	$selected    	Id severity pre-selected
+	 *      @param  string  	$htmlname    	Name of the select area
+	 *      @param  string  	$filtertype  	To filter on field type in llx_c_ticket_severity (array('code'=>xx,'label'=>zz))
+	 *      @param  int     	$format      	0 = id+label, 1 = code+code, 2 = code+label, 3 = id+code
+	 *      @param  int|string	$empty      	1 = can be empty or 'string' to show the string as the empty value, 0 = can't be empty, 'ifone' = can be empty but autoselected if there is one only
+	 *      @param  int     	$noadmininfo 	0 = add admin info, 1 = disable admin info
+	 *      @param  int     	$maxlength   	Max length of label
+	 *      @param  string  	$morecss     	More CSS
 	 *      @return void
 	 */
 	public function selectSeveritiesTickets($selected = '', $htmlname = 'ticketseverity', $filtertype = '', $format = 0, $empty = 0, $noadmininfo = 0, $maxlength = 0, $morecss = '')
@@ -1163,7 +1165,7 @@ class FormTicket
 
 		print '<select id="select'.$htmlname.'" class="flat minwidth100'.($morecss ? ' '.$morecss : '').'" name="'.$htmlname.'">';
 		if ($empty) {
-			print '<option value="">&nbsp;</option>';
+			print '<option value="">'.((is_numeric($empty) || $empty == 'ifone') ? '&nbsp;' : $empty).'</option>';
 		}
 
 		if (is_array($ticketstat->cache_severity_tickets) && count($ticketstat->cache_severity_tickets)) {
@@ -1199,7 +1201,9 @@ class FormTicket
 					print ' selected="selected"';
 				} elseif (isset($selected) && $selected == $id) {
 					print ' selected="selected"';
-				} elseif ($arrayseverities['use_default'] == "1" && empty($selected)) {
+				} elseif ($arrayseverities['use_default'] == "1" && empty($selected) && (!$empty || $empty == 'ifone')) {
+					print ' selected="selected"';
+				} elseif (count($ticketstat->cache_severity_tickets) == 1 && (!$empty || $empty == 'ifone')) {	// If only 1 choice, we autoselect it
 					print ' selected="selected"';
 				}