I found the right steps to follow, but please answer my questions :-).
Here’s the procedure:
I have the zone mycompany.lan. and a host named test005.mycompany.lan with ip 192.168.2.45.
Press the button CREATE to add a new zone.
Select “Reverse” instead of “Forward”.
Then press “Submit”.
Now add a new record for our host:
Button: Entry Command / New
(Note that record type is already selected to PTR)
Entry Name: 45
Press “Save” button.