Yes - search the forums for jigs. There are many people here who’ve made jigs for pencils and other multi-engrave operations to keep things in place.
Depending on the thickness of the pen, you may need to remove the crumb tray and build a jig to hold the pens at the correct height. This is very doable, especially if you’re turning pens, you obviously have access to some woodworking tools. You can also use the GF to make these!
A quick search of the forums and you’ll be on your way - here’s 2 good posts.