Another reason why copy/paste is not easy in this case, is that you will need to change the origin value of every script_mover, as it dont autoupdate when moved around.
But that's also why i wrote, that it can be installed at your location, at extra charge
(read: for free). You'll just have to send me your map file or atleast the surrounding brushes to the escalator, and i'll fabricate a prefab and script, so all you need to do is copy/paste.
If you want to make your own, that is of course perfectly fine, im just trying to help you save time, so your map will be done sooner (hopefully)