I have both a 91 and 92 here on the desk. The 91 is programmed to my liking. Is there a quick step by step on how to transport the contents (memories) from the 91 to the 92 ?

If you export to CSV from the 91 you should be able to import that into the 92. So, something like this:

1. Connect 91 2. Radio->Connect to 9x->Band B 3. Radio->Export->CSV File, choose a filename 4. Save (this will take a long time) 5. Close the 91 tab 6. Radio->Connect to 9x->Band B 7. Radio->Import from file, choose the CSV file 8. Hit okay on the import box

I get a schema error trying to load *.chirp files).

Send me the debug log and the equivalent .csv if you can!