You can use the dashboard settings to control aspects of the dashboard's behavior. To open the dashboard settings panel, click the Settings button on the dashboard toolbar.
General settings
In the General section, you can enable dashboard-wide options for viewers.
You can turn on the Allow element resize toggle button to allow dashboard viewers to manually resize elements. Additionally, turn on the Allow element expansion toggle button to allow dashboard viewers to expand elements.
You can enable the Allow dashboard reset toggle button to allow dashboard viewers to reset the dashboard after making selections and interacting with elements. The reset button only appears when there has been an interaction with the dashboard. Resetting the dashboard clears any selections made on elements, returns the map to its default extent and all map tools to their defaults, and sets any tabs and feature based elements back to their first value.
URL parameters
You can use URL parameters to make dashboards dynamic. With URL parameters, a dashboard can power any number of views. A URL parameter is a property that is added to a dashboard's configuration by its author that can be used to trigger actions. Learn more about URL parameters and how to configure actions on URL parameters.
Number prefixes
In the Number prefixes section, you can set the symbols to be used throughout the dashboard wherever unit prefixing is enabled. Dashboards perform unit prefixing using standard metric prefix symbols. You can enable or disable specific prefixes and, optionally, change the symbol used.