page numbering: by chapter or by book -- Redux

By default my Kobo now displays the number of pages for each chapter instead of for the entire book.

In a previous thread I learnt I could remedy this by editing the file "Kobo eReader.conf" in a text editor. The file used to be in the directory <DRIVE LETTER>:\.kobo

And you had to change this line from false to true:
FullBookPageNumbers = true

Now, for whatever reason (a change in the firmware or in one of the device interface plugins) the file is in <DRIVE LETTER>:\.kobo\Kobo

But what's more annoying: every time I load a book onto the device with Calibre, the file is changed -- an that line is changed back from true to false. So the device starts numbering by chapter again.

And in the device interface plugins (both KoboTouch by David Forrester and KoboTouchExtended are installed) I don't see an option that I can check or uncheck for this. Or am I overlooking it?

Can I change something in the settings, or is there another way I can prevent my having to manually edit that file every time I load a book onto the device in Calibre?

MTIA.