30 minutes is definittly to long time, There should be ablility to set 5 , 15, ....
This Feature Request is in relation to:
https://community.teamviewer.com/t5/Ideas/Trusted-Devices-Can-t-Be-De-authorized/m-p/5061#
https://community.teamviewer.com/t5/TeamViewer-12/Automatic-lock-after-5-mins/m-p/6130
"30minutes is way too long and potential conflicts with security policies such as ISO27001"
Please also add new feature:TimeOut to LOCK remote station.