That is where you can select individual or groups of fixtures and modify looks live on the fly. Record tells the program you are ready to modify live but this is not saving it or editing the button currently playing, it is simply over riding it. the auto will auto release record after you make a button selection on the fixture page. That way you save time by not having to go to record and turn it off. auto is a way to automatically turn it off. Play around with it a bit it is cool. the embed tab will actually embed the data you are doing into the button you have playing back.
I need too do a video on this...and MORE lol
Sincerely,