Choose which imagetypes to use watermark on

In prestashop watermark module its possible to choose which imagetypes that should have watermark.
When creating watermark from Store manager this isnt possible and this is a drawback.

For example Google Shopping need to have a image in the feed sent to them and its not allowed to use watermarks/overlays in those images. This inactivates the product in the feed. This makes it impossible to use Prestashop Store manager image upload with watermark.

So please make it possible to choose which imagetypes that should have watermark.