The label element:
The label element is to be inserted within a Page element. With the label element you can insert multiple labels per page in the pattern as indicated on the page element. The size and properties are set on the label style. These are the properties of the label element:
The page element decides for the actual positions of the labels, so the position here is the position relative to this. Remember to set the properties with the label style before the page element.
You need to enable the labels and set properties on the page element (on the label tab), and then you can insert the label elements inside the page element. You would normally insert the label element inside a ForEach element (to add a label for each node in the xml file), or e.g. inside a Repeat element (to insert e.g. a constant or calculated number of labels).