Policy based routing - pass traffic of one client via GoodCloud vpn

Hi,
I have one Flint 2 at Location 1 and one Beryl AX at Location 2.
Flint2 to has FTTP with public IP.
Beryl AX has FTTP with CGNAT.

I have added both the devices in GoodCloud and create a site-to-site tunnel in the portal.

Question - how can I route one client's internet traffic from Flint 2 to Beryl AX. The client is connected to FLINT2 LAN. Both routers have the latest firmware installed.

Does this scenario meet your needs?