345MHz security sensors would need to be programmed into the Edge panel manually. While you do not need to remove them from the old panel, if the panel is powered on during the pairing process, they will trigger at the old panel. As such, you will want to power down the old panel.
Z-Wave devices in use need to be cleared from the network first, before they can be added. Clearing can be done from either panel, but you would need to pair them with the Edge.
You can swap to the Edge panel via System Manager in your Surety login when you are ready to associate it with your Alarm.com account. You will need the Edge panels 15-digit IMEI.
Sensor and Z-Wave programming guides can be found below: