So you would be happy with a search field to find the right slide (given the
names are assigned more sensible). No objection here, it's a small change the
has no negative effect on the other users.
It would be great to get what you describe with groups. It's part of the
discussion around the Navigator in bug 90244 or bug 43511 (and many other, see
bug 103030). But let's stick to the simple solution.