Export Improvement | Export Only Visible Area

Please add button to export visible area only. i work a lot with pictures, many times zooming it in Photo AI window and i want to export just that zoomed area not whole picture.

This would be a step toward being able to do a selective CROP and copy the same crop area to all selected images. I have tried to do this and failed. Is this a new feature request or am I missing an exisiting feature?

its request. and as i think very nice one. and as a fellow programmer i think it should be easy to do.