Changing the state of multiple buttons at once
I'm relatively new here and i need your help! I'm creating a course and after finishing it the client asked for a colour change. It means I have to change the states of all my buttons on the slides - is there any way of selecting multiple buttons and then changing their states - e.g the colour when hovering over it, all at once? I seem to be able to change the colour normally obviously by selcting all but then the states options disappears and asks me to select just one? Any ideas?