This Module is currently available.
expander for OMFG
This is the included expander for the OMFG module
expansion module, giving CV control of the rise and fall of each channel (an increase in voltage increases the attack or decay time), with a combined rise+fall input for each channel (an increase in voltage here reduces the attack and decay times (increasing the frequency)). This opens up the module for even more uses, for example, as a basic triangle/sawtooth VCO or VCLFO (unipolar), and for easy creation of bouncing-ball style patches.
These merchants probably sell this module. Huh?