I have successfully created an Open VPN Client on my router.

When I enable the vpn for specific devices it seems to tunnel all traffic through that destination which is not ideal.

Is it possible to just tunnel specific destination routes? That way I can leave the connection permanently enabled utilise spilt tunnel and not hair pin my internet access unnecessarily. 

I tried to achieve this by editing to ovpn file but those settings don't seem to be read by the router.