[tor-relays] Bridge on two port

[binarynoise]

Hello everyone,
I currently run a bridge on port 8080.
As I don't have a webserver running, I thought I'd also publish that
bridge on port 443.
For relays there is that "ORPort 443 NoListen"-Option. What is the
equivalent for ServerTransportListenAddr? 
Is ServerTransportListenAddr obfs4 0.0.0.0:443 NoListen the right way?
Is this possible at all? Does make running a bridge on two ports make
sense at all?

Greetings
binarynoise