Is there any way to set elements to display using Local co-ordinates

So always in the same location relative to the camera i.e. like a HUD.

I haven't dived into the logic side of this yet but I haven't seen any simple toggles like we get with text boxes etc that we can choose to 'Display in Scene'.

If it's a logic solution, what's the best place to start? My first thought would be building a camera rack, with the camera controlled by movers, and mounting your elements to that rack. I've had terrible progress so far making my own cameras though.