Confirmation dialog for manipulation with more than one worksheet in Sage Notebook.

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Hello!

This is not really a question but a feature request for Sage Notebook. It would be nice to have a confirmation dialog while attempting to archive or delete more than one worksheet at once.

I just accidentally deleted all my worksheets because (clicked 'Delete' rather than 'Download'). And since there is no 'Undo' option, I for one would appreciate if the system would want me to confirm that action. In case of one worksheet it would be a distraction because of it is easy to undelete a single worksheet, but it is rather difficult to "fish" a lot of worksheets out of the trash.