The best way to install Max for Live devices would be to save those into your User Library. Per default downloaded Max for Live devices will be saved in
Max For Live Roundup: Ten FREE Ableton Devices Worth A Look — Noisegate
Ableton gives away 90 Max for Live Devices and a complete tutorial with sets; plus RNBO vs M4L - CDM Create Digital Music
Max for Live Devices — Ableton Reference Manual Version 11
Max for Live Essentials
Drumrack Toggle by Ableton Drummer - Isotonik Studios
Scene Setlist Monitor Max for Live device for Ableton Live's Session View
TEMPO CONTROL COLLECTIONGet 7 devices for dynamic and automated tempo control for Ableton Live 10 + 11 (6 devices will work in Ableton Live 10+11
Tempo Control Collection - 7 Max for Live device for Ableton Live
MaxforLive Audio Devices - Isotonik Studios
Building Max Devices
Working with Instruments and Effects — Ableton Reference Manual Version 12
CC VALUES FILTER - Max for Live Device for Ableton Live