I find softstep to be a very nice piece of gear with a terrible software... Unfortunately KMI doesn't seem too interested in sorting it out... even the bugs, wich in my opinion is totally unnaceptable... but that's their call.
Although I make a completely different use of it as you (I use it for playing guitar) , I found the solution for my problems with the Bome Midi Translator. Might be worth to take a look.
I simply program the cc's values on the softstep editor. Then I switch to standalone mode and only use bome's software.
Through it I can recall presets, reroute and change midi values, have perfect led feedback (even if I unplug and plug the softstep again), create value progressions (for instance, ableton looper, with red led to record, green to play, orange to overdub, blink when stop, and "off" when clear) and the greatest bonus, You can have an orange light
by forcing red and green leds to turn on simultaneously.
could be an alternative