It would be very helpful if you could highlight text and change it's case: if I highlight something I typed in lower case, it would become upper case, and vice versa. It would allow for some very simple editing without having to touch the keyboard.

Best posts made by NegativeROG
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Highlight Text to Change CaseSuggestions and feature requests
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Open page in background windowSuggestions and feature requests
Right click --> open page in BACKGROUND window.
That was so unbelievably useful.
I wish it would come back. Any chance?
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RE: ImprovedTube - YouTube ExtensionOpera add-ons
@improvedtube When watching native 4k, my screenshots are still in 1080.
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Right Click To Open Background WindowSuggestions and feature requests
That was a feature years ago, it's gone, and it was awesome.
Right Click opened a Window(I hate tabs) in the background and made browsing 1,000x easier for me, as I have severe arthritis, and jokes aside, one handed browsing (no Alt+Tab) was better. Please bring that feature back. Thank you.