Anyone know how I would go about storing multiple variables into one Variable action?

I am thinking I'd have to use python, but the documentation says I still have to create an action for each variable (takes up a lot of space.

I'd like to access variables in a python script directly (from other actions) without having to create a new variable action for each one. A sort of array variable.

Any hackish way of doing this?

For loops and lists?

It would be nice of it were a custom action.