Creating of automatic caption for a new uploaded photo in geocache log

I often upload photos to a log.

In the upload dialog I can enter a caption for a picture ... when I left it emtpy the autotext is "uploaded with locus maps".

I would like to have the chance to "generate" the caption ("text"_#cachename ... ) f.e. : JB_GermanyFirst

On my galery I then can see where the picture was taken ... on a cache page I can easily find my photos.

At the moment I just use my shortname as caption ... so in galery I can't see what cache that have been.