It doesn't look like the Bitdefender VPN Premium version 27.3.0.7 (b) has a configuration to setup port forwarding.
I guess my best bet would be to use Split-Tunneling and rely on configuring Port Forwarding with the ISP/Router or purchase another VPN subscription that supports native P2P port forwarding.
Is that accurate or is this something Bitdefender VPN will have in the near future?