Add Secret Key to URLs? Recommended Setting – Yes
This option was added to version 1.3. Some users have found this makes the administrative back end slow. For this reason, you may want to leave this feature off while in the development phase.
Session Lifetime, Seconds
This section is intended to extend the session length for administrators. Most users experience a session timeout after 15-24 minutes. Since the time is in seconds, 3600 might be a reasonable value for this field.