Home Security Question

I have a question about the home security system to see if this would fit my needs. I have a wooden fence, and I want to attach one of the door sensors onto that. And one onto my main door. I also want to have the Camv3 pointed at the fence as well.

So my question is,
Am I able to have the Wooden Gate open, and have the Camv3 run and not trip the alarm? And only trip the alarm if the front door is open?

Sorry if this didn’t make sense.