MIDI filter, zone/layer functionality in Q&A Posted October 6, 2019 1 hour ago, scook said: Depends on the plug-in format. MIDI FX racks support MFX plug-ins only which are DX format. A few are included with CbB. There are a couple of sources for free and commercial MFX plug-ins too. All VST2/3 FX plug-ins must go into audio FX racks or the ProChannel. To communicate with VST plug-ins that support MIDI I/O, CbB requires dedicated instrument or MIDI tracks. Here is how the routing works for VST plug-ins. While the name is a little misleading, a drum map may be used to split an incoming MIDI stream and route the data to different targets. The included MIDI Event Filter MFX plug-in may be set up to filter notes, CC and other MIDI data. In short, this is possible using the tools included with CbB. Thank you, that´s exactly what I´ve been looking for.