Boss VF-1 Effect Processor

Hello.

After years of loving my VF-1 as a static effects device, I've decided I'd like to experiment 
with using it in a more "performance" style.  Since I have it's MIDI in busy with a Vox Tonelab 
SE controlling patch selection and MIDI clock coming in from a computer (via a MIDI merge 
device) I don't see an easy way of hooking up a device like a Behringer FCB1010.

However, I really enjoy the ability to use 2 pedels to control 2 perimeters at a time.  Can I 
hook two of these up using the PCS-31?

Is the PCS-31 they speak about in the manual just a regular stereo 1/4" to two mono 1/4" 
adaptor?  (I've got a Hosa one if that's what it is)  I can't for the life of me find a place that 
even sells this PCS-31.

Also, I've got the Tonelab's pedels tied up controlling stuff on itself, so using them is not an 
option.