I'm not sure there's any point me watching the video, as I have neither of the devices, and no idea what they're about.
If you're using a standard midi cable and connectors, then you've got 16 midi channels, 1 to 16 (numbered within the midi data as 0 to 15). Sometimes devices place limitations on the use of channels, and usually channel 10 may be reserved (or at least pre-set) as percussion. Some devices may allow further channels, i.e. 17-32, but usually these are enabled via USB connections and they may NOT be available using a normal midi cable, unless both devices have something like midi A and midi B connectors, where A might be the standard 16 channels, and B the second 16. In any event, the midi channel is implemented as part of the midi data, and there can be ONLY 0 to 15 within the normal data.
Not at all sure why you might link channels 10 and 36? Channel 10 would be data 9 (within 0 to 15). 36 would be within a THIRD block of 16 channels, and assuming that set would be Ch 33 to 48, this would be REALLY channel 3 in the third implementation (Ch 2 in internal midi data)?
Data on channel 3 is channel 3 full stop. Unless the hardware at both ends has means of keeping the different sets of 16 channels quite separate.
Geoff