Max for Live
I’ve not delved into the world of Max for live as i dont have a copy but it is on the list as it seems to really open up the modular nature of ableton. It also seems quite complex so i thought id drop a few links to some help that i’ve perused and seem to have bookmarked 
Theres some pretty useful stuff from the main ableton page and cycling 74. One from Dj Tech Tools - and probably the most useful being a dedicated max for live tutorial youtube channel.
Not much of a post but a few links for anyone wanting to find out some more about m4l.