Add right-click option to "run as root"

Question

So far, I can find sufficient answers telling how to add a "run as root" to right click menu in nautilus. However, with caja, as expected, doesn't work to use the same technique as with nautilus

Answer 1

Ubuntumate 16.04 running on Raspberry Pi: There is no option to "run as root". However, inputing "gksu caja" in the terminal does work to open a folder as root.