MPLABX v5.35 and PBP3

[geoffpeters]

What file type do I select to use PBP3 in MPLABX v5.35?

[geoffpeters]

OK, so I must be missing something fundamental. There is no choice for a PBP file when I look at the drop down file type list. All I see is a variety of C types and Makefile.

Hpw do I enter a new PBP source file???