[dev] Ticket information in the dtl environment.

Hi all, Is there a simple way of getting some ticket information into the dtl environment variables? For instance, I currently need to check the lock status of a ticket in the AgentZoomStatus.dtl template. I am now using variable $Data{"Locked"} which is set in Kernel::Output::HTML::Agent::AgentZoom (1 = locked, 2 = unlocked). However, it is not referred to anywhere so I can not be sure that it is official and will still exist in a future version and getting the information from the environment seems a lot cleaner to me (maybe I am just a bit paranoid about these things ... :) ) Thanks for your time. Kind regards, Tom