re-trigger filter envelope without note-ons

Hi,

I want to re-trigger the filter envelope without note-ons occuring.
Can this be done somehow with midi?

Thanks.

Pot mapping and the TS perhaps?

yeah, I forgot, I have a RME.
Im really interested in what can be done with midi, before I buy any cv expanders.
Im using Max/MSP so im really flexible regarding workarounds that may help me achieving similar results to using cv expanders

Cheers.