PrF UG forms additional widgets
From Protege Wiki
Additional Widget Types
When Protege-Frames generates a default layout, it creates a default widget for each slot. However, the Widget Type menu allows you to to change the widget type for the currently selected widget. The choices for type of widget depend on the value type of the slot. Some value types have only one possible widget.
The following additional widget types are available:
InstanceRowWidget or InstanceTableWidget, which allow you to see a summary of all the slots of an Instance value
ContainsWidget, which displays the Instance or Class Editor for single or multiple Instance or Class values
DirectInstancesWidget, which restricts the values of an Instances field to direct instances of the Allowed Classes.
You can also change a Boolean field from a CheckBoxWidget to a ComboBoxWidget.
In addition, the graph widget is available for some fields.
Note: You may see additional widgets on the Selected Widget Type menu. Not all of these widgets are currently working correctly; we do not recommend the use of widgets other than the ones listed here unless they are part of a plug-in.
To change a widget, first select the widget you want to change, then select the new widget type from the Widget Type menu.