I pulled those out of Staredit.exe. They are in the exact order it's suppose to be, and I copied the resources it points to.
Condition/Action 0 is nothing. When you make a trigger and don't have any actions/conditions, it would be like having that. Basically, it's a blank.
Condition 13 is the condition always used in Briefing actions. Since Briefing actions use the same format as triggers, ithey use this as a condition.
Briefing action 9. This is used in one of the campaigns. If you're wondering how the "Skip Tutorial" button got there, this is how.
Disable action bypass disallows players from skipping triggers by pressing the ESC key in single player mode.
Enable action bypass re-enables the ESC key from skipping actions. BTW the ESC key for skipping actions in single player is defaultly enabled.
Using any "extended action" will crash the game(Actions with numbers above the listed ones).
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Highly doubtful you can enable them since I haven't seen anyone try it yet.
I have enabled them with hex editing in 3rd Party Editor.