Yes MPE is possible with both preenfm2 and 3.
You get a 4 voices instrument with pfm2 and 6 voices with preenfm3.
Just load the same preset in all instrument, then set the global midi channel to the one you want to use (usually 1).
And set channel 2,3,4... for the instrument 1,2,3 etc...
Control change 74 (brightness) is supported in pfm2, i just realized it's missing in pfm3. I will add.