windows (Archived) Arrow to left of folder in Sidebar:

[deebeeeff 0]

There is a straight arrow -> next to a Noltebook in the Sidebar. Not sure what it means.

(I am not referring to the Expand/Collapse triangle.)

[jefito 5,509]

Think that it means it's your default notebook.

[deebeeeff 0]

Thanks.

I figured it out just as you were posting your reply.