Can you turn off one door while the rest of the system is active?

Hello,

I purchased Simplisafe for my mom.
It was easy to set up and use, so far, she likes it and feels secure.

We had a question, is it possible to turn off one door while the rest of the system is armed?
Ex., if she disarms the front door to go get the mail, but the back door, and windows remain active.
This would be a great feature, to be able to turn on/off one sensor, rather than have the entire home disarmed.

Thank you.