RPG

I'm using Choice List for the experience.
It's says:

Choice list : You can choose between several choices defined at the creation. (examples : Race, Class, Gender, Hogwarts House...)

Now, I assumed that ment members could fill in ANY word. My settings:
Clan
Gender
Name
Rank

They can, currently, choice one of those words. Their Clan is not "Clan"
I can work around everything but Name. I need that be be able to be custemizble; I will not have time to add a new choice for each member.
To boil it down; How can I edit Choice Lists so that they can edit it themselves?