So annoying - near the end, a teaser box for another video appears over the top left, hiding what you are doing. Same problem in video 3/7 and perhaps the others (4 thru 7, which I haven't yet watched).
Double-clicking to open a subpatcher window is possible when the patch is locked with the lock icon in the lower left corner of the window or by pressing Cmd/Ctrl+E. Alternatively, when the patch is not locked, you can hold the Cmd/Control key when double-clicking on the object to open it.
Hi there - Thanks for reaching out. That is possible, but it gets pretty complicated setting something like that up. It might be a good idea to look into a 3rd-party tool kit like EboSuite. There are also instructional videos on RU-vid where people walk you through Max for Live visuals that will cover your question in detail. Hope this info helps. Thanks - Ableton