This video really helped, @pat. Thank you.
May I suggest to expand the “Publish to DEVONthink”-Stamp-Code a bit in order to place the backlink – from Devonthink to Tinderbox – into each exported note; so one can quickly return to original note in Tinderbox while working with the exported notes in Devonthink.
Code could look something like this:
action($Text("/Stamps/Publish to DEVONthink")); $URL=$NoteURL
Does this make sense? At least, it works here.