I've seen in another topic that people are using the DDNS functionality, but it seems as though many services can't be (properly?) configured through the Web UI (the OpenWRT settings pages), or at least that's how I'm reading it. I tried a number of things, with no success, so I used the [X Reset] button on that page, and now no matter how many times I reboot or try using the Add button, with or without the Save button afterwards, I never get an input section back on that page!
What to do?