All LDT visitors are expected to be familiar with, and abide by the following.
OPERATIONS AT THE TELESCOPE WHEN NOT THE CURRENT OBSERVER: If there is another party observing, and you would like to access the telescope or instruments (even to do internal calibrations, or similar self contained operations), you must contact the people observing at that time as well as the TOs. If you don't know the observers, start with the TOs, as they will know who is observing. The observers have the right to decline any such operations if they feel that they might interfere with what they are doing.
From a safety perspective, LDT staff need to be aware of any operations taking place at the telescope. From a science perspective, the observers of record may have concerns that other operations might have unanticipated impacts on their observations.