True there is sufficient documentation, but if the Hi-Tech is the now default compiler, I think it should be available from the help-documentation menu in psoc designer rather than the older one.
I have found that I had become rather reliant on the imagecraft memory usage output compiler message. When the code overwrote used memory space, it was easy to see. The Hi-tech compiler states the total percentage used, and if any overwrites occur, it doesn't pick it up. I bounce between compilers to double check code usage and to sometimes better describe and find errors the other compiler may not show.