Upgrade Rewrites

Instead of just only be able to to create and then delete Rewrites. It'd be great if I could edit rewrites and move them around to prioritize them.

Lets say I have the domain example.com (and subdomains because *.example.com) pointed to 192.168.1.10, but I want to have nas.example.com pointed to 192.168.1.5.
So I would have nas.example.com before example.com in the list and understand the list reads from the top to bottom.
Currently I'm not sure if that works, because I don't know who the system reads the rewrites and when changing an IP it's really annoying to delete the rewrite and then add it again.