@James *******
Thanks James, sorry if I confused you. I'll try again.......my life plans have changed thus my O-A has expired. I will arrive Don Muang after 8 weeks in Philippines, assume I get a 60 day visa exempt which I will extend. It seems to me that to then leave Thailand during the extension, for just a few days, (necessary trip) and return to get a new 60 day visa exempt will be frowned upon hence my query about a re-entry permit during the extension.
I hope this has clarified things