Eventually VEMS will release new and more advanced hardware, hardware I think the current VEMSTune implementation wouldn´t be able to handle properly.
See linked PDF for my notes on organizing complex ECUs into more easily manageable user experience and user interface.
http://www.vems.hu/files/VemsTune/VEMS%20Advanced.pdf
I don´t think everything in that document needs to be exactly as it is there, but by following similar construct a more advanced VEMS can make itself more user friendly and more easily supported.
If you want any information on anything in Pectel ECUs let me know. I can provide screenshots of anything requested.