This is a new feature in version 6.50.
The file containing all of the PEM Editor preferences and settings is named 'PEMEditor_Preferences.DBF' and has been living in folder Home(7).
Beginning with this release, you may store the preferences file (along with its FPT file) anywhere that it can be found in your path. Doing so allows you to have the file backed up as part of your normal program backup.
Note that you can reset all of the preferences and settings to their defaults by deleting all the records in the file and then packing it.