Didn’t report this before but:
When I create an empty valuelist via ‘Define Valuelist’ I first have to fill the custom value field with a value and then make it empty again. Or I have to select a relationship first and click the radio custom values again to enable the ‘ok’ button.
Wouldn’t it be better to pop up a dialog asking me if I am sure I want the custom valuelist to be empty? Of course only when I clicked the radio button custom values…