diff --git a/frontends/src/primitivus/xmlui.py b/frontends/src/primitivus/xmlui.py
index d81a2644..e7ce9851 100644
--- a/frontends/src/primitivus/xmlui.py
+++ b/frontends/src/primitivus/xmlui.py
@@ -279,6 +279,10 @@ class PrimitivusPairsContainer(xmlui.PairsContainer, sat_widgets.TableContainer)
         self.addWidget(widget)
 
 
+class PrimitivusLabelContainer(PrimitivusPairsContainer, xmlui.LabelContainer):
+    pass
+
+
 class PrimitivusTabsContainer(xmlui.TabsContainer, sat_widgets.TabsContainer):
 
     def __init__(self, _xmlui_parent):
diff --git a/frontends/src/tools/xmlui.py b/frontends/src/tools/xmlui.py
index b0213971..c8dffcdd 100644
--- a/frontends/src/tools/xmlui.py
+++ b/frontends/src/tools/xmlui.py
@@ -150,7 +150,12 @@ class Container(Widget):
 
 
 class PairsContainer(Container):
-    """Widgets are disposed in rows of two (usually label/input) """
+    """Widgets are disposed in rows of two (usually label/input)"""
+    pass
+
+
+class LabelContainer(Container):
+    """Widgets are associated with label or empty widget"""
     pass
 
 
@@ -364,6 +369,9 @@ class XMLUIPanel(XMLUIBase):
                 elif type_ == "pairs":
                     cont = self.widget_factory.createPairsContainer(_xmlui_parent)
                     self._parseChilds(cont, node, ('widget', 'container'))
+                elif type_ == "label":
+                    cont = self.widget_factory.createLabelContainer(_xmlui_parent)
+                    self._parseChilds(cont, node, ('widget', 'container'))
                 elif type_ == "advanced_list":
                     try:
                         columns = int(node.getAttribute('columns'))
diff --git a/src/tools/xml_tools.py b/src/tools/xml_tools.py
index 742258b7..d419197c 100644
--- a/src/tools/xml_tools.py
+++ b/src/tools/xml_tools.py
@@ -111,7 +111,7 @@ def dataForm2Widgets(form_ui, form, read_only=False):
     if form.instructions:
         form_ui.addText('\n'.join(form.instructions), 'instructions')
 
-    form_ui.changeContainer("pairs")
+    form_ui.changeContainer("label")
 
     for field in form.fieldList:
         widget_type, widget_args, widget_kwargs = _dataFormField2XMLUIData(field, read_only)
@@ -303,7 +303,7 @@ def paramsXML2XMLUI(xml):
         label = category.getAttribute('label')
         if not category_name:
             raise exceptions.DataError(_('INTERNAL ERROR: params categories must have a name'))
-        tabs_cont.addTab(category_name, label=label, container=PairsContainer)
+        tabs_cont.addTab(category_name, label=label, container=LabelContainer)
         for param in category.getElementsByTagName("param"):
             widget_kwargs = {}
 
@@ -596,6 +596,10 @@ class PairsContainer(Container):
     type = "pairs"
 
 
+class LabelContainer(Container):
+    type = "label"
+
+
 class TabsContainer(Container):
     type = "tabs"
 
@@ -1042,6 +1046,8 @@ class XMLUI(object):
             - horizontal: elements are disposed left to right
             - pairs: elements come on two aligned columns
               (usually one for a label, the next for the element)
+            - label: associations of one LabelWidget or EmptyWidget with an other widget
+                similar to pairs but specialized in LabelWidget, and not necessarily arranged in 2 columns
             - tabs: elemens are in categories with tabs (notebook)
         @param dialog_opt: only used if panel_type == C.XMLUI_DIALOG. Dictionnary (string/string) where key can be:
             - C.XMLUI_DATA_TYPE: type of dialog, value can be: