What does "OP" stand for?

Just for the record, I do not write the macros. The only reason I can install or use the macro is because it is handed down directly from management. Writing one's own macro or using an "outside macro" would be strictly forbidden - that is why I rejected that idea - sorry - that's just the way it is here. Trying to install or load some outside code or macro would be a fast ticket to getting terminated, fined or even jail time around here. This is the Federal Government (a high security department).