Custom Parameters for a post.

IS there a way that I can create variables that belong to a post?
In the image, you'll see blue and red boxes.
In the blue, I want to store a list that i can add an infinite amount of items to.
In the red boxes are pitures with radio button underneath.

these are just arguments/parameteres/properties that I want to be able to access when printing the post on a page. Is that possible?


Also, what's the best way to have multiple people run a single wordpress. I need different faces on each post. Different names as well