Managing Contexts

I've recently discovered the Tools > Save/Load Contexts feature, and I'm finding it particularly useful for saving groups of files I'm working on at any one time.

However, it seems to be a little limited in its management of files once saved. I can't find a way to edit the file-sets. Re-saving only creates an additional same-named set with a new time.

Is there some way to get better control over this, such as adding or removing files, deleting sets, browsing sets, etc?

It feels like a very useful feature, left (unfortunately) unfinished.

Cheers,

Dave