Update FAQ single instance question

en/faq/README.md

@@ -58,7 +58,7 @@ A: Yes. In **File → Preferences → General**, set "Default Encoding" to _UTF8
 
 ## Q: If I double click a BibTeX file in the file browser, JabRef always opens a new window. Can JabRef open the libraries in the same window just in a different tab?
 
-A: In **File → Preferences → Network**, in the “Remote operation” section, put a checkmark to “Listen for remote operation on port”. This option allows new instances of JabRef to detect the instance already running, and pass files to that instead of opening a new window. (Default option since [JabRef 3.0](https://github.com/JabRef/jabref/blob/main/CHANGELOG.md#30---2015-11-29)).
+A: In **File → Preference → Single Instance**, ensure that "Enforce single JabRef Instance (and allow remtoe operations) using port [6050]" is checked. Note that 6050 is the default port and can be changed if desired.
 
 ## Q: I have a DOI/ISBN/ePrint/etc. Is it possible to create an entry directly out of this identifier?