DT 3.0beta4 - custom metadata removing from display

In custom metadata. I have added a new field ‘status’, Type ‘set’. (It’s not the example default of the same name.) In the preview pane list column after selecting an item from the set list I change my mind about wanting that item displayed but there doesn’t seem to be any way to remove the item from display. I have tried adding a blank line to the field list but although it appears to accept a blank it is not in list of items that is displayed for selection. The only way I have found to remove an item from display is to include in the list ------.

It seems strange to be stuck with not being able to remove an item from display. Any other suggestions, please?

This is a known issue, sets don’t support an invalid selection yet.

i’m still having trouble deleting metadata categories, is this why?

No, this shouldn’t be related. Which issues do you experience?