Add PTZ buttons to ONVIF card

Hi.
I have added my ONVIF camera to Home Assistant using the wizard. A card has been added showing a preview of the camera. If I click over that card, I can access to the ONVIF stream but can’t move the image because no PTZ buttons are shown. How can I add that buttons?
Also, where is the camera configuration stored?
My system is Debian+HA supervised.
Thanks