Request: Thumbnails in "Join Images" window

[quapurna]

Hi, Pierre and Forum Members.

After including several images to be joined, it is very frequent that I want to change their order by using the 'Up/Down" button in "Join Images" window.
It is not easy to me since there is no thumbnail or preview to see.

Request:
In "Join Images" window, can we have the thumbnails of all included-images appear?
It is similar to the "Batch Convert" window, "Input" tab; where we can drag-and-drop the thumbnails to change the order of those images.

Note:
Currently the title of the window is "Strip of Images" .
Should it be changed to "Join Images" ?

Thanks.