Thanks for the response DJ Freshfluke. I checked the PCDJ forum and read that a newer version will soon be officially released that will support VMS4.
I also solved the problem of the humming noise from my power speakers. I first connected it from RCA cables to XLR but I changed from XLR to XLR and the noise is almost not existing. The only thing is that I have to buy XLR splitter so that I can simultaneously connect the VMS4 to my power speakers and also power amplifier.
It's really great that VMS4 is having balanced XLR output.