okay
The boom pin must to be set one after another,and you need to make sure the section you want to pin have fully extend
Input 7 meaning you want to pin the section from the rear of the boom all the way to the seventh section(the tip)

me and small dirt were playing around with some cranes and I asked him about the LTM 11200-9.1 T7Y 100M, he said that he didn't know how to, and he said that your cranes are a bit more complicated. But while I was afk, he set the LTM 11200-9.1 T7Y 100M. I was going to ask him how he did it, but I had to leave.

I should have made myself clearer. What are the steps for setting this up? How do I connect the counterweight? When I spawn the crane, the control tower automatically moves to the back. the boom pin puts the crane in a position and keeps it there right? because when I put 7 in the boom pin keypad, the whole crane flipped over on the left side. And yes, how do I connect all the cables?

do what?
fully extend the boom?
connected all the cables?

how do i do this