Well now great!
The lovely airline sends me a text that my Lubbock-DFW flight is delayed, can't connect to my second reserved flight, so I have change. Nice to have some warning and flexibility, but I'm trying to change my flights and get my daughter to change their's to the same ones - but she says the app is not letting her select what I did. When I finally got her on the phone, I tried to walk her thru it, but she claims it won't. I think she's missing something, but she wants to call, so we'll see.