iConnectivity iConnectMIDI2+ Owner's Manual page 31

Then each row lets you select one of the 127 MIDI Controllers from the Controller ID
drop-downs. Only the first 30 or so are shown below, but all 127 controllers in the MIDI
spec are there if you continue scrolling down:
This too is on multiple screens in the iOS version. Start by tapping either the Controller
Input Filters or Controller Output Filters. Tap the port to be filtered on the next screen,
and a screen with the eight filters appears. Select one of the filters and you'll bring up
the screen to enable or disable filtering on the MIDI channels you want the filter to
apply to:
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