In order to preserve the changes you have made to a workboard, whether these are design modifications (e.g. adding, deleting components, resizing), analytic activities (e.g. drill down, slicing, exceptions) or social elements (e.g. comments), click the Save button on the Application Bar.
After changing user settings and adding or editing discussions, you do not need to save the workboard. These actions are saved in the system as soon as they are executed and OKed.