WebDAV servers support actions on collections in several ways:
1. Creating collections: WebDAV servers allow users to create collections (i.e., folders) either through their client applications or directly in the server using HTTP request methods like MKCOL.
1. Deleting collections: Users can delete a collection either through a client application or by sending an HTTP DELETE request to the server.
1. Moving and copying collections: WebDAV servers allow users to move and copy collections to other locations or servers using HTTP requests, such as MOVE and COPY. This enables users to reorganize their file directories or backup their data to a different server.
1. Listing the contents of a collection: Users can list the contents of a collection by making a PROPFIND request to the server. The server responds with a list of the resources contained within that collection.
1. Locking and unlocking collections: WebDAV servers support locking and unlocking of collections to prevent concurrent access by multiple users. This can be accomplished using HTTP LOCK and UNLOCK requests.
In general, WebDAV servers provide a rich set of methods and tools for users to perform various actions on collections, making it easy to manage and organize large amounts of data.