Is it possible to setup OpenVPN Server on Asus router with both UDP and TCP simultaneously?

[alaise]

I have an Asus router (rt-n66u) with an OpenVPN server with UDP setup.
This works fine but I wondered if it is possible to setup OpenVPN to listen on another port with TCP at the same time?
This would allow some clients having issues connecting through UDP to connect over TCP while others can still use UDP as they do now.

If someone has an example on how to do this with an ASUS router that would be great.

[TinCanTech]

OpenVPN will only use one port per process so you will need two server instances running simultaneously, one with --proto udp and the other with --proto tcp ..