No Freeform?

[Florio]

You got few facultative missions, but i think it is wise to do them 'cause you will earn a lot of money, some facultative mission (if u fail) will change the story line.
but if u mean repeatable falcultative mission a few but they nearly never occur... (such as doing patrol), such as free time doesn't allow you to do that much, u can have free time during mission by delaying the instant when you will enter in the designated system, but it will be mostly attack on pirate, search for cache or raiding cargo bay...