Got ya. I thought you were using iclone.

UVs aren't as grueling as they were 10-20 yrs ago. These days 95% of it is all algorithms. You pretty much just tell the software where you want the seams to be cut and it flattens everything for you. Some software does a much better job of it than others. With zbrush, you just cut it all up into poly groups based on how you want it to be laid out, and zbrush will make each group its own island/map. It flattens pretty well and gets everything pretty evenly distributed. Only down side is that it doesn't give much control over where your seams go on complicated shapes. Like a head - it will always run the seam down the center of the face no matter what you do. So I just use blender to fix those issues.