In a computing system, a communication that includes contents retrieved from a data repository and configured to be organized in a table is received from a second device. The received contents are displayed in the table on a user interface. The table includes multiple rows, one of which is configured to remain empty while the table is displayed to indicate a possibility of adding a new row to the table. While the table is displayed, a user input that indicates the empty row and is configured to trigger the new row to be added to the table is received. The new row is added to the table without first communicating with the second device regarding the addition. The new row is configured so that new contents entered into the new row are to be added to the data repository in a subsequent communication to the second device.