Image order after upload

Hi, yesterday I have uploaded a test album, managed by backlight. I made a custom order. Now, when I upload new images, all images appear on the top of the existing images. How can I move them with one click at the end of the album?
I tried it with iPad and Macbook Pro an I had to drag and drop 20 times for 20 images. I am sure I did something wrong?

Rainer

No, you did it right. That’s the way it works, as far as I can tell.

Since it’s a custom ordered album, I guess the assumption is that the new images would be ordered after they are uploaded. Just a guess, though.

Thank you and Merry Christmas for all.
So - the Backlight publisher is unusual for me.

Rainer