There’s also Click Removal. This is a very basic effect and it doesn’t have presets either, but you can create your own presets and it is included in Audacity.
There’s also Clip Fix which is a bit different, and also does not have presets. Again, you can create your own presets and it is included in Audacity.
I have solved the mystery. I found some old bookmarks that I had forgotten about, which lead me to this old but very useful post:-
The article includes links the the author’s own audio software “Wave Repair”. I have used it and it is excellent - I must be getting old and forgetful.