How do I add a new device in MCS v4.0.0.0 please?

I'd like to use PIC18F26K80 but it is not in its device (drop-down)list.

I can't find in my computer any of PIC.INI or DEVICE.ini files described in other threads or founds on the web, adding *.BAS or *.INC files in PBP doesn't seem to work either