Thanks!

How do I get rid of this annoying gap above the "Collections" in this project, please?

Thanks.

Ah, thanks, rdale. I was a little baffled there; had just opened a project from 2017 to see what it was, closed it, trashed it, and found a backup.scriv version had appeared.
When exactly was Scrivener 3?

However, for the moment I'm rid of them. Thanks for your help; when they reappear I'll come back.

In theory that sounds right, but where do these backup.scriv files appear from? I keep capturing them and zipping them in folders. At that point there are no files with this extension. Then they start creeping back.

I don't quite understand what you're saying, rdale.
Most of these projects are in constant use. I've trapped various "…backup.scriv" files in folders and archived them five or six times since 2015. They seem to keep breeding.

Further to a thread on my old projects producing backup files called "Filename.backup.scriv" in the old manner, I'm told that updating the projects would stop this behaviour.
How do I update a project, please?

I'll send this question as a separate thread.

Turns out I have a whole series of zipped folders of "Backup.scriv" files, from 2015 to today.
How do you update a project?

In fact, I have a vague memory of asking about this before, and subsequently tracking down a bunch of Scrivener projects with "Backup" in the names, putting them in a folder, zipping it and trashing the original folder. But these must have reappeared after that. I wonder is the problem tha...

That zip-the-backups option seems to be checked already.

Oh, and another strange thing; sometimes when I search for a word, the "Backup"-named project comes up as a result, but the original project doesn't.

When I search for a word or phrase on my Mac (normally using HoudahSpot, which is much better than Spotlight's basic search), I often get results which are Scrivener projects with a .backup suffix; eg "Stories backup.scriv". I thought the Scrivener backup system had changed so that backup ...

OK, done; a million random recipes sorted into 17 folders. Thanks very much, MimeticMouton and Sschrugged, that worked well.