Rebind the "take screenshot" key?

I don't have a print screen button on this replacement keyboard, but I would very much like to take some high-res screenshots like I used to. I can't seem to find the option in whatever new options menu BDO has since I've been away, but is there any other method to rebinding this key? Thanks!

To preempt what assume are the first ten responses: -I'm not going to use Steam, those screenshots are not high-res -Using AHK or other macros is not what I'm after -Buying a new keyboard isn't in my budget

Thanks for any useful help!