Importing into Vcarve Pro

I have a fairly complex cutout I need to do through Vcarve on my CNC machine, when I import the file into the program, all the lines change to black and I have to try select them individually to able to assign different cutting instructions to it. I have made every group a different colour in Illustrator but when it imports into Vcarve, it changes it all to black and ungroups it. Is there a way to sort this out?