Hi,
I really struggled with this one.
Maybe it will give some ideas for module developpers 
This is my take of the polyphonic envelope @verboselectronics with some twists.
Everything present on the original panel is reproduced on the metamodule. this patch is not only about reproducing the functionalities but also the interface.
The twists mentionned before are :
-controls over the shape of the curve (global for the 4 envelopes)
-Inverted output (All CV’s) with offset controll
-CV for level
-CV amount control for everything
-Internal LFO (when nothing patched in the corresponding CV Input) over all Skews and tilt control.
-Independent trigers (loop mode) for each envelope. (Gates inputs don’t make the envelopes looping. In this case the response is a sustain).
BTW a smaller version using polyphonic capabilities is already set and will be available as soon as these functionalities will be implement in MM
Here’s two versions, including one with an internal LFO for the skew parameters and one without. This patch required almost the maximum amount of modules that MM supports.
Runs at 24KHz
Verbos Polyphonic Envelope (with lfo).yml (49.3 KB)
Verbos Polyphonic Envelope.yml (46.5 KB)
The polyphonic version for vcv with already a voice patched:
Polyphonic envelope for vcv v2.vcv (12.8 KB)
There’s already some good demos about this module (the original ) on youtube
Hope you’ll enjoy
Cheers
Denis