When you are called on to help develop a document, you can edit the document online or by posting a new version.
To edit a document that is currently locked for editing, the user must have the Document Edit permission. To download a document that is currently locked for downloading, the user must have the Document View permission. A Document Administrator that have the option, Allow Document Admin to edit enabled in the LOCK DOCUMENT section or a Site Admin can also remove the edit and download locks.