US Patent 10133720 Showing presence of multiple authors in a spreadsheet

Dynamic collaborative presence information is provided. A plurality of users may access a document concurrently. Presence information associated with each of the users may be communicated to a server, collected, and communicated to a client application running on each user's client device. The client application may dynamically show where other users are editing a cell or a range of cells to help avoid collisions of edits in the document. Various interface elements may be provided for indicating presence and for indicating whether a single user or multiple users have selected or are editing the cell or range of cells.