Entrenchments plus Community Project query

[PongoDeMer]

Could anyone tell me how entrenchments work in the Decisive Campaigns series?
1) Is this done automatically when infantry/engineers remain in a location?
2) Is there any provision for improvement - eg turning a shell-scrape into a trench?

Community Project

I would like to make my own scenarios. Currently, only Case Blue has a scenario editor. I have seen comments about the Community Project that imply that there is a separate scenario editor that works with the games. However, when I followed the links, all I found was website design software. Could anybody point me in the right direction?

Thanks in advance,

Pongo

[Octavian]

U have an auto-entrench for every terrain that immediately is put into effect when a unit marches into. And after sitting still the entrenchment maximizes over time until it reaches the terrain-specific maximum.