Is there a way to mirror flip all the costumes in a sprite?

[nathenaelhailu08]

You can flip a sprite along its vertical or horizontal axis in the editor, and you can set the rotation style to 2. But what I want is to actually flip the costume itself (like the first thing I mentioned), but for ALL the costumes in a sprite. Is this possible, or must I do it manually?

[angzarr_812new]

before

after

[ego-lay_atman-bay]

If you want make sure there is no quality difference, you can use this to flip a costume using its pixels directly.