Sync text to event/schedule calendar

The Galaxy Watch 3 comes with a default watch face called Digital Dashboard. On it, it has a text field that shows your next calendar appointment (aka schedule).

I’m trying to create a watch face with that feature on it. Anyone know how to do that?

GWS can not make on-line connection to schedule (calendar). If there were only few things to remind, those could be manually inserted and adjusted to show on decided time, but that still would be tedious and not directly linked to any external data.