I have an OK button and 4 selection fields (rectangles).
The OK button has two states: a) inactive (b) active
The OK button should only change its state from inactive to active if one of the 4 selection fields is selected (their state is then "selected"). I.e., if none or more than one is selected, the state of the OK button should be inactiaved.
Any tips on how to do this? I've been desperate about it for a few hours now.
I'm using the latest Version of SL.