I just purchased a B2011UAS-RM and while trying to set this up, I lose connection. Then I can no longer connect to the router. On the 10.10.10.1 nor the default 192.168.88.1
There are so many settings (awesome and overwhelming lol) that my guess is, I’m missing something.
If I am understanding properly your problem you want to change the internal network from 192.168.88.0/24 to 10.10.10.0/24
/ip address add address=10.10.10.1/24 interface=bridge
With this you add a second ip address to your bridge interface (it may have a slightly different name in your case). You can then try accessing your router with that ip. This does not remove the default ip 192.168.88.1 so if you still cannot access it with 10.10.10.1 you can fallback to access the default.
When I first setup my switch, I similarly lost connection. Someone here gave me a great hint that you can use winbox and connect to its MAC address. I used that, completed my configuration, and had no connection issue after that.