Add more than one watermark pictures

G'day!
I've noticed a smaller problem when it comes to the watermark section in the banknote page. The problem is that some banknotes, like this one, has different varieties where the watermarks changes depending on which variety it is. The problem here is that there is only room for one watermark picture. I reckon it should be possible to add more than one watermark pictures to show the varieties.

In the linked page the watermark picture is of the variety with diamonds. Mine has snowflakes, but the only way for me to add a picture of that, is to remove the current one, which I'm not having any attention to do. So please make it possible to add more than one watermark picture.

Cheers!

In the meantime, could it be uploaded in the comment section? Until they determine a solution?

meanwhile, to solve the problem is to merge the two images into one

Quote: "lgalvezp"​meanwhile, to solve the problem is to merge the two images into one

​This might cause issues with images carrying a copyright!

Boosting this thread. It would be a great help to notes like N#226365 in the USSR section of the catalogue, with its four watermark varieties.