Easier image to video selection

It would be great to have the option to click on an image in the generator and select "Use as source image" if the generator is already set on video mode. That would then only replace the image but leave everything else intact. Often I generate a lot of images that use the same "setup" in the generator but I have to manually clear the image and dragging the new one in place, which is a bit of hassle.

So, "use image as source" or simply replacing the old image upon drag'n'drop would be super!