This is not an idea, more of a feature that you supposedly offer already, however it does not work! When I select All Emails I get an option I would attach a screen shot if your feedback form had that option, or even ability to take in some graphic input. Option says (green check) 100 messages selected.Select all 154,931 messages in Inbox. I select those 154,931 the app goes through the motions of deleting it just to leave every single one of them still there.

Also, maybe adding more formatting options to the Feedback form would help.

Thank You.

Also, maybe feedback form should have more graphic capabilities, and formatting options.