I forgot to mention that this right-click feature also works on the Load Game screen.
I don't know why I didn't re-read the game booklet. Then I would have known about the right clicking
I went back and read the manual (which is supplied as a PDF file in the GOG version), and while it amply covers the use of right-clicking during gameplay and in the inventory, there was no mention of using it in the Save Game and Load Game screens.
Uncle Reg - only 24 save slots??? I've already used 6 I think and I'm still at the beginning of the game.
The game is divided into chapters (I think I remember that there were 6 chapters in all), so that once you advance to a new chapter, you can safely overwrite the saves for the previous chapter(s). That would effectively give you 24 saves for each chapter. I'm on Chapter 4 now, and the 24 slots have been adequate for me.