"Select All" and "Select None" would be great in the options pane

[sxflynn]

Is your feature request related to a problem? Please describe.

I wanted to see all of the different screensavers in action, so I painstakingly clicked on all them.

Describe the solution you'd like

Could you have a "select all" button. And also a "select none" button when you want to do the reverse?

Describe alternatives you've considered (Optional)

I just have to click on all of them as fast as I can.

Additional context

Add any other context or screenshots about the feature request here

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