Sorry it looks like George beet me to it, but yes just as George said. I first opened ST app and hit + to add a device
Then on my tuxedo keypad hit the scan for new devices tab.
My ST hub and tuxedo are only about 15’ apart as well but on the same floor. As stated you might want to rename devices as you will have generic labels.
I yes did just mainly get the ST hub for integration with my echo dot.