Smartbox Grid Pad Manual page 71

Under actions, select On and choose the name of your button
from the drop-down menu (Desk fan A for example). Next select
the Off action and assign this to the name of your button followed
by the letter B. Tap OK to save your settings and return to the
Environment control window.
Your socket will now be listed under accessories and will be ready
to use in your Servus Environment Control grid set. To test it, you
can use the Fan grid to toggle the socket on and off.
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