A maxforlive device to set a step sequencer on the user mode of the launchpad pro.
Just dl the LPProStepSeq.amxd file, and add it to your max for live library.
Once in live, create a new Midi Track. Set midi in/out to your Launchpad pro user canal (default is 6) and set monitor to in. Add the LPProStepSeq Max MIDI Effect.
Select the track you want to edit in the Max for live plugin. This track must contain a drumrack device, or nothing will happen.
Now you can create and modify clip in launchpad user mode, as a push drum sequencer.
Video tutorials :