save bridge sort

When I prepare to load a lot of images to a web gallery, I sort manually how I want them.  If there are lots of images, sometimes more than 100, this takes very long times and then is all lost if anything is done later on.  I have seen a post about renumbering in the order you want.  All my images have unique numbers already correlated with a database and that is not an option.

I remember years ago, in an earlier version of Bridge, I posted and was told I could rename the Bridge sort file and have different sorts. I had done it. Is this another useful ability, that was dropped at some point?