FWIW, I broke down and upgraded to Ableton 10 Standard and was able to add on Max For Live at half off. So, it didn't take me long to find what I needed, which works perfectly [http://maxforlive.com/library/device/3421/step-recorder].
I also stumbled on this, a M4L tracker style 16 step MIDI sequencer by http://www.encoderaudio.com/control.html