Cannot get cargo loading to work?

[teisco]

Want to do a cargo plane but cargo  loading is not showing up...I set the cargo door and selected cargo in the airport setup..but when I go to Y screen where all the loaders and such are supposed to be I get the green arrow lines for them but no loader present..no 3d version,,just the green indicator that I can move..I get stairs and such but not many vehicles..

So then I go into the sim and select loading but the only loader visible takes off and goes down the runway to who knows where. I get the bus and crew loading but no cargo loaders.

[virtuali]

You must set all the doors at their correct height. If you cannot move the door indicators in the editor ( at all ? or just some keys ? ), be sure you don't have another add-on that used the slew key events.

In the airplane editor, raising/lowering the pointer is done with F1/F4