Looking to add wireless remote to commercial door

Hey all

I have a 3 button controlled commercial door I’m looking to be able to add a remote to make life easier. It’s a lift gate t5001m opener. Looks like everyone recommends an 850lm and a 893max to do most conversations but I wanted to make sure this is what I need before I try it. And by chance anyone had any cheat sheets to wire it. Will be my first time messing w a garage door