Channel Map Mod X -> Off

[RosaShaw]

Aside from the Channel Map "Exclusive" and Channel-to-Port Mapping, I don't see a way to filter a specific channel from an in port to a specific out port.

From a single input port, I'd like have these filtered routings to two output port:

First output:
Only channels 1 through 9 (mapped naturally)

Second output:
Only channel 15 mapped to channel 2

The second output is covered by the "Exclusive" option. But I don't see a way to handle the first. I can't use the "Exclusive" option because only four channels are present in a single Channel Map modifier (and "Exclusive" is not the union of all applied Channel Map modifiers). But without "Exclusive", there doesn't appear to be a way to map multiple channels to nothing (as the Out port mapping doesn't have an "Off").

Am I missing something?

I don't think you lack anything