Mastercool,
Just had a look at (and downloaded) the description for the asset. This states that attached track was deliberately omitted because of the many possible uses for the facility.
In other words, work out how you want to use it, and run your own tracks to reflect that usage.
As for attaching loads, if the cranes were static, you could take an appropriate object, and raise it to a suitable height, but as they move, the answer is probably not.
Matt.