I'm new to the joystick game as I just brought T-Flight HOTAS,which is great had a search on forums and found a XML setup pretty sure there is many for the Rhino from some of the community,just need to pop the XML in
C:\Users\your name\AppData\Local\Frontier Developments\Elite Dangerous\Options then Bindings,then I set the file to custom.binds that way custom is your default settings and should not overwrite on next patch.
Hope that helps.