How to use Tyre with a Start 20?

Hooli1402 Registered Users Posts: 3
Apprentice Traveler
edited December 2021 in Devices using MyDrive Connect

I purchased a Smart 20 Tomtom today & have been trying to add routes I've planned on Tyre to it with no luck so far. I've seen suggestions of adding them as POI files, yet even when I do that they don't appear.
I only bought the Tomtom to tour the Alps with the routes I've planned & I'm leaving in about 48 hours so I could really do with solving this. Currently all I can think of is adding every waypoint as a favourite manually with some sort of naming convention so I know what order to select them in, but surely there is an easier way?

Thanks in the hope you can help...