When you run the Tutorial, it goes through 2 or 3 "screens" of lessons, then a message box comes up that says 'Click "Open..." and open "Tutorial 1" in the Examples.' and then '<>'.
Then when you open documents menu, there is no "Open..." option, so I guess there is no way to
view "Tutorial 1", nor the subsequent tutorials, which I assume exists for Beetleblocks. Here is what appears in my document menu:
New
Import project or blocks
My Profile
My Projects
Migrate from the old cloud
Save
Save As...
Download project as...
Download My Blocks as...
Download 2D Lines as...
Download 3D Model as...
Libraries...
Logout / (user's acct name)
Start Tutorial
I suspect the "Open..." menu option was removed without understanding it was required for accessing additional Tutorial pages.
If there is now another way to access these tutorial pages, then it should be described in the first tutorial page.