You can always open the contextual help by clicking the button top right.
In addition have a look into the manual. You will find it in blue navigation column on the left.
The access to the test account is: www.sharedequipment.uzh.ch
User name: hamust
Interested parties can book "wildly". The only thing you should not change is the test account password. In the booking window, the function "Send booking information to me" does not work because there is no active e-mail address for Hans Muster. Normally, when using this function, the user is sent an .ics file for her own calendar.