NordVPN tunnelling

I have Slate AX and first time I am dealing with tunneling so I want to understand what is the default behaviour for Based on Client Device / Based on the Target Domain or IP: It will route all traffic to VPN or non-VPN? Can I make default as Non-VPN since i want only certain device or service to be routed to VPN. Unless I need to manually add ALL other devices to Non-VPN list which would be a huge pain

After selecting “Based on Client Device” or “Based on the Target Domain or IP” it will ask “Use VPN” or “Not Use VPN” for the Devices/Domains/IPs.

So if you want only a specific list of devices go for:
“Based on Client Device”
“Use VPN”
and select the wanted clients that should be routed through the VPN.