Yup. You can see why I am trying to raise a discussion / can you fix this kinda topic for it. Cause it would be really good in a multiplayer mission to be able to drag a fuel tanker around it opens up loads of options for longer distance flying and staying airborn.
What I think would be really cool would be able to push commands like "Tanker -a" and "JTAC" like we can in the mission editor. So we could say Fly WP1 -> 2 -> Become a Tanker -> 3 -> 4 -> 5 etc... and stays a tanker though WP 3, 4, 5 etc...
If it is replacing the whole flight plan for the WP nav's like it is in the mission editor most of the stuff is probably already in the code for it.