In order to edit lock details you first have to choose a lock in the menu Locks. Now you have several option you can choose:
A) Press the button More in the right corner to maintain your lock or rename it.
B) The tab Access shows you all the users having access to this specific lock.
C) If you want to grant access for new or existing contacts, just press the + button. For more detailed explanation, click here.
D) The category info shows you all relevant lock-specific information, e.g. the serial number.
E) You can have a look at the access log here as well. You can see all the closing processes and can understand who has had access to a particular room and when.