Add ability for Step to only listen to one MIDI channel

[Sandroid]

As @Dann mentioned. This feature has been released with Step Firmware 1.0.1

Announcing Step 1.0.1

Step 1.0.1 Step 1.0.1 enhances MIDI functionality, including improvements to PC and CC. Note: MIDI settings are now global, so per project settings will be lost and you will need to reconfigure your MIDI settings in the new menu after the update. No changes have been made since the latest open beta firmware. New Features MIDI PC channel assignment and filtering PC In Channel configuration added in the MIDI Menu Now only the first 128 songs respond to MIDI PC changes Independent CC channel …

This request is thereby complete and i will release your votes into the wild
Make sure to put them on something else before they run away!