Swipe to the left on your chosen WIFIPLUG device in the app until the actions tray is visible then press the blue Timers button (left option).
To setup Timers on WIFIPLUG GLASS/GLASS+, tap the Timers icon to the left of the ON/OFF switch then move onto step 2.
Tap the add (+) button in the top right corner to add a new Timer.
Select if you want the Timer to turn the device ON or OFF, choose a time for it to fire then set which days you would like the Timer to repeat on. If no repeat is chosen, the Timer will fire once then be removed. Once you have configured the Timer to your liking, press "Schedule timer".