Trigger Action can be used to call any client action in a time span chosen by the developer. The input parameter "Interval" is the number of seconds between the calls and the handler of the "Trigger" event should be the action to call every X seconds.
Refresh Screen can be used to refresh the screen in a time span chosen by the developer. The input parameter "Interval" is the number of seconds between refreshes.
Added an OnDestroy action that will clear the interval if the web block is removed from the dom or if the interval changes.
This will enable a developer to dynamically change the Interval value or remove the refresh