This idea has been merged into another idea. To comment or vote on this idea, please visit WEBFLOW-I-155 Ability to organize Collections in folders and reorder them.
Most sites as they develop need a more complex folder structure to account for the content hierarchy (e.g. "www.domain.com/category/sub-category"). Collections should allow for that by not only defining the slug, but also the parent folder.
Desired outcome: Possibility to nest multiple collections (e.g. one collection for "category" and another collection for "sub-category").