How To Register TPMS IDs

Took my 2016 Gen4 to service today.
Against all odds I found out it has 8 memory slots for tyres after all (4 summer, 4 winter).
All my tyres were already in the system.
How to switch?

The guys at the shop gave a link to this video by Toyota Finland.
1. start car
2. go to settings --> tpms menu
3. Press select button 3 times, the tpms light start blinking, wait for the blinking to stop.
4. Make sure you have the right tyre pressure.
5. Press long on the button (set pressure normally), tpms starts blinking, wait for it to stop.
6. Voilá, you are now on the "other" set of tyres.

Here's the video (sorry in Finnish, but the subtitles are above).
Works at least here in europe.