I have a workflow with a state with two incoming GLOBAL transitions (they have exclusive conditions). How can I remove one of both? In text editing mode, I cannot find any way to remove a global transition. In diagram-mode I see only one small black box with text 'All' one of the two transitions is hidden below the other ?). How can I access the 'other' one ? I can only select the one that is 'on top' 
Thx
By the way, this workflow designer is probably the worst designer I have ever seen 