Unfortunately, it seems the classic editor is
not available in the demo version of TMT.

In fact, only the "Beginner" editor seems to be available in the demo version.
Can anyone else confirm this?
EDIT: When I tried to upload a track made with the "Beginner" editor (which worked especially well with my PC's Xbox One controller), I got a screen informing me of the
full game benefits. Now I see that the full Trackbuilder (and the classic editor) is only available in the full game.

That's fine by me. I'm really liking TMT so far. Perhaps after spending a little more time with the demo, I'll probably buy the full game.
3.6 GHz Intel Core i7 4790; 16 GB RAM; DirectX 11; GeForce GTX 960
Windows 10 Pro x64 (21H2); Single user (admin)
Wired LAN, 100 Mbps; Microsoft Edge
Windows Defender
My TM2 Skins