Adding "dummy" empty books for metadata sync with Kobo

[readingcat]

Hi! I use Calibre to create collections on my Kobo. I have most of my Kobo books downloaded and sync the metadata this way. However, there are some books I can't download because I have them through Kobo Plus, so I can't add them to my Calibre library and have been managing them manually.

I now found out that I can add empty books to my Calibre library. I am thinking of creating dummy records for my Kobo Plus books, with all the metadata and the custom columns that I use to create collections, and then matching those books on my Kobo with the dummy records so that the custom columns would sync.

However, I'd like to make sure that matching these Kobo Plus books to dummy records won't cause any problems, such as the actual file on my Kobo being deleted during sync because the corresponding book in Calibre is empty?

Thanks!

[DNSB]

I do what you are suggesting by adding empty records matching my Kobo Plus books. They also get the reading stats and so forth from my Kobo when I sync with calibre. So far, I have never lost a book by doing this.

[readingcat]

Thanks! I will do that then.