The grid that is displayed by UltraCombo is read-only, so there is really no feasible way to do what you describe here. You could roll your own control, by adding a DropDownEditorButton to an UltraTextEditor's ButtonsRight collection, and assigning an UltraGrid to the button's Control property. You would in this case, however, have to handle the process of getting the "value" from the grid to the UltraTextEditor, which is not difficult or onerous, but does require some coding.