SetTempo allows users to preset different tempi if needed throughout one and the same live set.
To save a preset, cmd/ctrl-shift-click on one of the slots in the preset object. The settings saved in the first slot will be auto-loaded the next time you open your session/drop the device on a track.
All number boxes and buttons are MIDI/key-mappable, allowing easy tempo management during a live-set.
Article source: http://www.maxforlive.com/library/device/1165/settempo