Customer Self-Service Portal

How to configure user sessions?

I can find NO information on how to configure session time for users in the web client.

At this moment my sessions from several days ago is still active since I have not actively logged out. This is unacceptable from a security standpoint, we must be able to configure sessions to terminate after a set amount of time.

I can find no information on this when searching the internet, and I can not find a general web client settings tab. I am a super admin.

Please respond ASAP, we are about to start a audit in a few days time and need to have this in place until then.