Hey guys,
Sorry to resurrect a dead topic, but I thought you might be interested to know that I've released a free maxforlive device that adds APC40 control to the Mono Sequencer. You can get it over on maxforlive.com:
http://maxforlive.com/library/device/26 ... -sequencer
I also made a quick video explaining how it works if you haven't got your hardware handy:
https://www.youtube.com/watch?v=FG0_c5RODrE
It sounds like JuanSolo may have had a similar patch going last year, but was asked not to release it (???). I haven't heard anything about updates to the Mono Sequencer, so maybe they had a project underway that was never finished. From what I can tell the sequencing modes in Push are pretty good (though I don't have one), so I've no plans to port it there, but I will try to add APC20 and APC40 MkII support next.
Enjoy!