MRA Nav App suitability for off road use

[David Martin Sandilands]

Im considering the Nav app addon to use for on and off road use, and have a few questions:

1 Can you load and follow GPX files of an off route (Like TET) and follow the route off road?

2. Can you log/record a route save as GPX route then follow it at a later date?

3. An MRA planning advice, can I plan an off route on the MRA planner?

Any advice is welcome.

Thx