I've seen systems that are rooms off long hallways, or vertical, in the out doors such as in trees or caves, etc.

Each person's system is a personal design, and there is no wrong way to have organized, imo. I don't think anyone can just sit down and map their system completely... as there always seems to be at least one that holds out until all the rest are recovered or integrated etc.

If you have someone who doesn't seem to fit in, then maybe you have to tweak the way you are seeing them? Not necessarily the one but the whole system... maybe like a hotel with an elevator and someone who moves throughout?

It's good to begin... but don't feel stress that you have to figure your system out all at once. (((safe hug)))