I was trying add Open Browser window beahavior in a library item and it didn't work. I could set the event to "onClick" but the add behavior "+" was greyed out and I could not select anything because it would not open. Had to just go and copy and paste from another place and then change the urls. Even though the behavior now works when I click on the "gear" symbol to open the settings dialog box it wont open so I have to change it in code view.
How ever it works perfectly in HTML. Anyone else had this problem?
Have not tried any other behaviors.