Ableton Live has no way of using a single button to arm the next/previous track to record. This is useful so you can have "up"/"down" pedals/keys mapped to switching the armed track to change the current effects rack applied to your monitored sound.
This is my first Max for Live patch, which is very rough in organization and features; all feedback in those respects would be great.
Copyright (c) 2017 Pedro Tacla Yamada
Published under the GPLv3 or with All Right Reserved