Keep copied selection size in a new image

[pylebecque]

Hello,

Thanks in advance for your wise help!

- Example : I have opened an image of 1000 x 500
- With the selection tool, I select a part of that image. For example, I select 200 x 300 of that image
- I want this selection of 200 x 300 to be a new jpeg file
- So I create a new image BUT THE SIZE OF MY SELECTION (200 x 300) IS NOT KEPT IN MEMORY!
That new image has automatically the size of the main image : 1000 x 500
BUT I WANT A NEW IMAGE WHICH WOULD AUTOMATICALLY BE 200 x 300, the size of my selection.

So instead, I have to memorize myself the size of my selection in my little head.
When I open a new image, I have to type in myself the size 200 x 300 which I have memorized.
It's okay when it's 200 x 300, but it's kind of challenging when it's 1426 x 1428, a good memory training!

I remember that in Photoshop, it did that : it memorized the size of my selection in a new image.

How can I do that with Gimp?
Or maybe is there another way around that issue ?

Thanks for your help