Sorry for taking so long to come back here and comment on your question… Couldn’t get to computer in a while.
Did you get it figured out? If not then I might be clueless as in what to do aswell. I haven’t worked with matinees ever before so I am not exactly sure how it works but couldn’t you do it so that you drag off a pin from the button that is pressed and call a Play function in. And then you just connect the matinee actor to the play function?