[Feature Request] Add to resize the option to prioritize width or length

[tomaccess0]

Same as title. Thanks in advance!

[Faster3ck]

Hi! This feature is already available.

Just enable the Maintain aspect ratio checkbox. Then set the side you want to ignore to 0, and enter a value on the other side.
The value you enter will be kept constant during resizing, while the dimension set to 0 will be calculated automatically by the program.

I'm also adding a help tooltip in the interface to clarify how this works.