First time modding, first roadblock: How do I edit units?

[The_Grim_Sleeper]

Well, I figured out why it didn't get into the game.
1: I was looking at the wrong number in-game
2: If you leave vanilla backups in a subdirectory of the sessions directory, they can override a file in the main directory.

But adding additional Abilities is still difficult.

Still looking for that russian forum.