Originally Posted by Alrik Fassbauer 
First - it's called the age of the dragon(s) … But so far (I haven't started the game yet) I cannot find any hints towards that in the game.
It's more along the lines of:
Originally Posted by Alrik Fassbauer 
So, I still don't understand what "plot support" actually means.
I think, I don't have the handbook (Digital Deluxe edition), it might mean options that affect the plot. Coercion, which is a sort of persuade/intimidate skill, can be used to affect how the plot goes whereas taking the Rally talent wouldn't. I think most of the skills do factor into at least one quest, but I could be wrong.