adding gallery size info?

[chucklantz]

Request for feature:

I have dozens of galleries and I sometimes need to leave the originals up for awhile, and then delete them to save space (and money). As it is now, I have to open each gallery to see if it still has originals. Would it be possible to show the total megabyte sizes of each gallery on the "edit galleries" page? That way we could find the largest galleries, and do some reducing. Thanks!