When working in the backend, after some minutes I´m out and have to re-login.
Thats sometimes really blocking. Is there a possibility to change that?

God bless You,

Andreas.

Andreas,
The All Configuration section of the Install Tool has a setting for sessionTimeout. By default this is set to 1 hour (3600 seconds) and you can move it up or down as you like.

If you're being logged out in less than an hour of inactivity, there may be something else going on.

Thanks,
jeff