Extended terrain is too complicated for a tutorial. However, there is a tips and tricks page here in the Terrain forum:
http://www.staredit.net/index.php?showtopic=10722I don't see a reason for an EUD tutorial since uBeR@TiOn is quite user-friendly and basically the easiest way to make EUD conditions.
If EUD conditions were to be patched, Blizzard would've already patched them because they patched EUD actions in 1.13b, EAS (Extended Alliance Status) in 1.13c, and ESS (Extended Switch Status) in 1.13c. If they wanted to do it, they would've already.