Product media handling

[d0ublezer0]

J2.5.1
VM2.0.1K

For example, I have uploaded some pictures for one product. When editing a product, click on "Edit image information" (on additional images) - nothing happens. Change the image information is possible only in the media manager (or, only for first image in list).

It would also be nice to add more interactivity to upload images for the product.
To load a new image and its thumbnails now it looks like this:
1. need to select an image from disk,
2. click "save" (page is reloaded)
3. select a thumbnail from the disk
4. Click "save" (page again rebooting)

And so it should be done for all the product images.
Needs a lot of actions.

Thank you.