Hi there,
I read about some issues of users here setting up the DT with keyboard synths in a smart way. Let me show you what I did to get a minimal setup where I can play every device with every device using the Blokas Midihub:
The trick is to send all CC messages back to the synths and only messages of playing (note on/off, pressure, after touch - ok my synths do not have aftertouch…) to the DT. Out of the DT I used channel filters, because I don’t want to have all synths to react on messages of the global channel, only the Nord Drum for program change. The synths have to be in Local Control Off mode (there may be a different name for that on other devices) and send and receive CC and PgrCh messages.
In this setup I only have to choose the track that I want to play on the DT and can play this with the drum pads of the Nord Drum, the keyboard of the Nord Lead or the trigger button of the DT.
I don’t need an extra master keyboard or trigger pad for this.
…Oh, and don’t use MIDI through of the DT in any way here…
The principle to play everything with everything should be the same for other and more devices.