Partially disable alarm?

I have a home with an attached in-law unit. I want a whole home alarm system but am on the fence whether to have it professionally monitored. One of my primary goals is to constantly monitor the in-law unit via motion and door/window sensors so I know if and when grandmother with dementia is up and moving around or tries to leave. Is there a way to disable part of the system so I only get alerts from her side throughout the day? I also don't want an audible alarm going off every time I get an alert.