Well, I was beginning to update that levelset, when I remembered the words of Zomis about providing some graphics with the levelsets, so I started a new set, trying to realize the "train".
Due to the fact that Holger dislikes envelopes, this new levelset contains no envelopes at all

Just kidding: the truth is that I'd like to see if the CEs I made are intuitive enough.
For the same reason, I did not include the solution tapes
I posted it here: (10x to Zomis!)
http://www.zomis.net/rnd/download.php?id=398
It's pretty boring and little buggy at this state (I called it "Trucky Cargos *V 0.1*" because *this* is real *far* from being final!) but if Holger will help me, I promise that I'll spend all my effort in making a decent levelset from it.
At this time the levelset contains the following objects: the empty and filled cargos (replace magic boxes); the long-distance tractor (head section - replaces the magic skill); the single-step tractor (fork); the emerald depot; the cargo dumper; the reset terminal (bet you'll need it, one of these days

) and, of course, an improved (trickyer) version of the magic trail. (If somebody doesn't know what I'm speaking about, please take a look to the "Magic CE-s" levelset that I posted earlier on this thread)
The thing I need in order to add different "wagons" (cargos) to the train (thus making it little more interesting), is the "passing values" option, as wished in another thread. I could go on using all those CEs and change pages (and I will, if I'll have to), but I think that an add-on of this kind would be useful and welcome - at least for me!

.
I hope that you will let me know what you think about this levelset.