Can I ask if you discovered how to use the event filter negatively (or like a 'notch' filter), i.e. to filter out just the sustain CC? Or did you discover that the filter only works positively?
 
I'm trying to leave most CCs going to a Hammond (drawbars, Leslie, swell) but stop the sustain (which is needed for the piano but messes up the Hammond). (This is "live"; on its way to the track rather than post-processing a track.)
 
I think I have put the MIDI filter in the correct bin; I can choose which events are allowed through, but I don't seem to be able to choose which event is not to be let through.
 
Thanks.

If i recall correctly, you can drag the bar corresponding to the CC you want (up and down) to the range of values you want to pass - you can go zero to zero for example. You can have all negative, or all positive values. I often use this for wheel events to reduce the range of a wheel event for a particular synth when layering two or more synths.

Brando
... you can drag the bar corresponding to the CC you want (up and down) to the range of values you want to pass ...

Exactly. I've no problem with setting the filter up to pass an event or a range of event values; but I can't figure out if it can be set to deny or hold back a certain value (CC 64) - i.e. act as a "notch" filter.

...You can have all negative, or all positive values...

I'm guessing that by "negative", you mean the wheel values. However, if the whole plugin has a button for act positively or act negatively then that's probably what I want; but I haven't found that functionality. There are other MIDI plugins out there that can act as a "notch" filter but I was hoping I could use the Cakewalk one.