Versions

Versions of the document are displayed on the top of the History panel. Each thumbnail represents a document state or alternative layout. Next to the thumbnail is the version name and time of creation. Versions are saved either automatically once you create or save the document, or you can save them manually. Having multiple versions saved within a single document has many benefits. You don't have to search your disk for many files and you don't have to remember the names of all those files. The file size is considerably smaller compared to having each version in a separate document.