Filter for assets search in the controlpanel

[Alpenverein]

I think it would be great to have the same filter options in the assets search like there are in the collections. We defined a quite detailed assets blueprint, with photographer, copyright, legal-information and so on... My editors would love to search exactly for all images which are free to use, or all images of a specific photographer...

(What I mean is the dialog dialog in the screenshot which ist missing for assets)