"Guest" Button

Hi

For me it would be very nice to have a small button (just in admin mode) on the top of every picture (in the thumbnail view) with following function:

When I upload a new album, I have to choose these pictures I want to give to public. It's too hard to go every time into the seccurity menu to give access for guests for the picture when you have over 200 pictures.

For a little inspiration... In one year I have PHP in my class, maybe I can do it for myself...
but now not yet..

Thanks,
Deer_eye