additional navigation in breadcrumb of ItemEdit

Hi there,

I have an installation with Galelry2 and a custom theme which is based on the Matrix theme. What I miss is the following:

While editing an item (g2_view=core.ItemAdmin&g2_subView=core.ItemEdit) I'd like to navigate to the next image with one click and edit the next one. Is there any chance to get "previous" and "next" links into the breadCrumb while editing?
I often need to modify the title of several images and it needs many clicks as I do it right now: "edit image", "save", "click on the item in breadCrumb to leave the edit view", "next image", "edit image". Now i look for something like "save an edit next" or "save", "edit next item".

Any idea is welcome,
thanks in advance,
Rapha