Because Zotero is open source, there is a wide range of developers and contributors to the software and the official support documentation is limited. If you have a question regarding Zotero, your best bet would be to ask a librarian, or to search and/or post in the official Zotero forums (which are monitored by Zotero staff.)
Schedule a 1-1 appointment with a librarian. Different types of appointments are available, including: