In Rhino 8 (8.13.24317.13002, 2024-11-12), borderless printing doesn’t seem to work. When I switch to “borderless A4”, the margin settings set for “A4” are preserved and can’t be manually adjusted.
Yes, margins can’t be adjusted when printing a layout. The work-around is adjusting those when printing from a model view, canceling that, and then printing the layout. RH-12697 Margins when printing layout
I’ve also noticed that switching to “bordless A4” changes the scale of what’s to be printed without that being reflected by “On Paper / In Model” scale in the Rhino print dialogue.
This is obviously misleading if you need the print to be scale accurate.