Fixed Port
By default, the pgAdmin 4 uses a random port number to ensure it can always run successfully. If you need to use a predictable port number, you can set one here. Note that if the port is already in use, the application will be unable to start.
Fixed port number?
Port Number
Connection Timeout
Connection Timeout will define how long to wait for pgAdmin to start before throwing the error. By default, pgAdmin wait for 90 seconds.
Timeout seconds
Open Documentation
By checking this option, all documentation links will open in the default browser instead of in a new window.
Open Documentation in Default Browser?