@Barb-Miller
I think I understand what you are asking:
MRA planner on website has an option for waypoints that is a "4x4 car". This option draws a straight line from this point to previous one. This is useful for offroad tracks or others than Mra map in use does not knows nothing about.
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In this route, point 4 has a straight line, because I know a secret track to use, but MRA not 🙂
This only works on planner, nor in Next.
Is this what you mean?