To commit the text, I pressed CMD + Enter - like I do in other graphics programs I use daily.
Crazy to me that some of these shared, commonly understood shortcuts are different in AD.
It's infuriating as I can see the potential in AD, which is why I download the betas periodically, wanting to be impressed, but each time run into immediate, nonsensical roadblocks trying to do basic things such as this.
Please, sort it out Serif. Think sensibly about commonalities.