PC to Android, display Route and Track together?

[markt326outlook.com]

I am planning a Coast to Coast trip for a group of motorcyclists and there are parts that can be either ridden by road or take an off-road option rejoining the original route a bit later.
On my PC I can show both the full road route and the full off-road/road track on the same screen - the idea being that for all riders it's easy to see the routes deviations as they come up into view.
The problem is that I can't seem to get the same view on my Android phone, only the Route displays. How can I also add the Track?

Failing that, how else could I go about achieving the same or similar result?

Many thanks.

[Nick Carthew]

@markt326outlook.com
You could position a route point where the off-road section starts and write in the note what the options are and add instructions.

[markt326outlook.com]

Thank-you Nick. I have already added route points for 'Split Here' and 'Re-join group'. Without the off-road track though it's guesswork when you come to split in your path.

[Nick Carthew]

@markt326outlook.com Another option to act as a visual guide while navigating the off-road section is to add some POIs along it. Use the Manage tab and the Add button.

[markt326outlook.com]

Thanks again Nick, seems nothing is ideal.. even off-road waypoints.
The current plan is to navigate the road version in MRA up to a 'Split' waypoint where I'll stop to turn ABS off & at the same time swap to the OS Map app to navigate the off road section as confusing as that app can be.