@steveh
Hi Steve, I’ve never done it but I have thought about it. Given that Stewmac sell their Fret Arbor Press with a picture of that very process suggests that it can be done
https://www.stewmac.com/luthier-tools-and-supplies/tools-by-job/tools-for-fretting/pressing/fret-arbor-press-system/ 
🎸🙂🎶🙏