How can I search my library for all entries that have multiple formats?
Example:
- Book 1 has .epub, mobi, and .lit formats
- Book 2 has .epub and .mobi
- Book 3 has .epub
- Book 4 has .azw3 and .pdf
I would want all book entries except 3 to return in this search.
I haven't found a combo of "and" and "or" in format searches to work because including epub in the search automatically includes book 3.
Help is REALLY appreciated. I'm surprised this isn't built into the Find Duplication plug-in or even the Quality Check plug-in. I haven't found anything in the help manual to work or on this site. I tried the search format:>=2, but I think that must only work for numerical like fields such as ratings.
Again, this is for library entries that have multiple formats.