Hi!
I have used different routerboards before. But this time I bought RB2011UAS-2HnD. Big suprise to me was that WAN configuration (Quick Set window) in Winbox is linked with SFP1 interface. At the moment I do not have need to use GBIC module (but maybe some time later) and I want to use as WAN port ether1-gateway port (not sfp1-gateway). I would like to change this setup but I can’t find a way to do this. I even updated to the RouterOS 5.24 - same. Of course, I can disable sfp1 interface and set up external ip address on ether1-gateway, but it is annoying that I that I do not have any chance to select which one will be WAN interface in quick set window… Maybe it can be suggestion for software developers in future to implement such functionality.
Ok, I can disable DHCp client on both gateway ports, I can set up external ip manually on ether1 interface, but then I can see on quick set window, that I do not have correctly configured static WAN IP address. Olny workaround is not using quick set window… 
Annoying anyway. And probably confusing for beginners…
just do a config rest without default configuration
and then do it from scratch (zero)
config interfaces
config bridge
and config ip adresses