whonixsetup, when selecting "tor is censored in my area" says "Go add bridges to torrc and come back". The advice " Start -> Applications -> torrc" needs to be changed to Start -> Applications -> System -> torrc
torrc.examples shows how to add bridges (but should obfs4 have the "managed" line?). It gives a link, but there is a better link:
https://bridges.torproject.org/options
However, once you have those bridges, it looks like you can copy and paste them into your torrc. A careful reading of torrc.examples shows that you need to put "bridge" before each line.
I can't remember: is host -> guest clipboard sharing enabled by default in the gateway ova?
Right now it's tough for a new user to connect via bridges. I'm thinking about how to make it easier.