Didn’t quite get what holograms are supposed to do there. Giant anchorable sounds like different types of ads on the outside.
What I meant was a showcase for your ship collection in hangar when docked in home station.
For example, with those nice skins coming up I’d like to put some Triglavian ships around my hangar. I wouldn’t buy or build any trig ships to fly, but I would put them on a ‘shelf’, on a display, if I could. Those new skins are really something different, like if they assigned totally new art team.