If want to bypass a sensor before the system is armed, open the doors and windows you wish to bypass and follow the steps below:
Select an arming mode...
With the door or window open, you can press "Bypass" during the Entry Delay and it will disarm the sensor.
The Direct Bypass button is used to skip arming any open doors or windows and still arm everything else. To do this, make sure to arm the system and enter the settings page by pressing the "Gear Icon" at the bottom right corner of the page.
Select the "Direct Bypass" button on the settings page.
Enter your code and it will take you into a menu with a list of your sensors. On the right side it will tell you if the sensors are not bypassed. Select the sensor you wish to bypass.
Remember that when you have bypassed a sensor, while the system is armed, it will go back to default once the system has been disarmed.