Track Navigation

Hi,

I'm Trying to create a script that will let met navigate through abletons Session View via a DIY midi controler.

I'd like to move up and down the scenes, like how you can move left and right through the tracks, but i can't find the mapping for it.

Also, is it possible to map the Session record function as well as a selected Clip launch and selected clip stop functions?

I'm asking this because i'd like to map my controler so that I cant easily record and play back clips on different tracks and different scenes.

Thank you!