You can completely open / close all of the SmartShades assigned to a specific SmartBridge at the same time. Note that each SmartBridge can support up to 10 SmartShades.
From the main dashboard, select the SmartBridge to which the SmartShades you are trying to control is assigned to. If you only have one SmartBridge installed, then you can skip this step.
Open All Shades: Tap the "Open All" button. Within a few seconds, all of the shades will move to the fully open position.
Close All Shades: Tap the "Close All" button, to move all of the shades to the fully closed position.