Don’t forget you can use an audio file as an Envelope, and use the sample player to control a VCA! The speed or pitch of the of the sample would be the speed of the envelope shape. It wont have precise control over the DS stages… but depending on the type of sound it can still work great, especially pads.
You’d just need to make some CV audio using ie: the DC plug-in expert sleepers. But… CAREFUL with your speakers as DC can blow the coils.
Alternately… you can record some CV with the 6 track recording using an ADSR somewhere else in you modular - and then use that for the sample player.