Hint: $A[v_1 v_2] = [Av_1 Av_2]$

Matrix Manipulation Question
I like to group my bookmarks into Folders in the Bookmark Bar.

But I cannot find an easy way to delete these bookmarks!

The only way I know to do this is to go to Show All Bookmarks, then browse down to the shortcut and select it and delete it - this totally gets in the way of workflow.

Is there any way to delete a Foldered bookmark from the bookmark bar?!

NB - I am not talking about standalone bookmarks, deleting those is easy and intuitive.
