Why not find a CCF file that matches your receiver, import it to create a PCF, then merge the codes from that PCF?

With regard to the PAL/Region hack...

Create a new button. Then create a new IR code. Learn a dummy code if you like. Then, in the editor window, remove all the stuff you just learned and paste the hex code from the Pioneer PDF in there. When you hit OK, ti should take the code. Question is, did it shorten it to a 9000 series or 900A series code (code starts with these number and not the 0000 raw format).

BTW, there should be a comprehensive set of help if you press F1 from the editor.

I always used the TSU7000 and not the 9500 but Wizz.it and ProntoEditProNG are very similar.
Lyndel