PS V2.8.0 Can't seem to add my custom profile for Flashforge Creator Pro IDEX machine  

PS V2.8.0 Can't seem to add my custom profile for Flashforge Creator Pro IDEX machine

I have been using a custom profile in PS for my Flashforge Creator Pro IDEX machine for several years now.  I now have a new PC and I'm trying to get the new setup to recognize my custom Flashforge Creator Pro IDEX machine profile, without much success.  

On my old PC, all I had to do was use the existing BIBO dual-extruder .INI file as a template and change all occurrences of 'BIBO'-ish to 'Creator Pro2' and then place that file in the c:\users\frank\appdata\roaming\PrusaSlicer\vendor folder.  That no longer seems to be the case with 2.8.0.  I have looked through all the documentation on the GitHub site, and I'm more confused now than before I read through it- doesn't seem to make a whole lot of sense.

Anyone else had any luck getting Prusa to recognize a custom profile?

TIA,

Frank