>save option with shift + mouse hover
So, you're holding Shift, and every image under you cursor is saved automatically? Might be risky in terms of performance, but sure, why not, that's pretty handy.

>an option that the button appears in a position relative to the cursor
Calculating button position relative to the image as it is now is a huge pain in the butt. As opposed to simply putting the button under mouse cursor, it should be super easy.

Gonna add both of those in the next versions, stay tuned.

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added in 0.4.9