OnePlus Watch 3 - Automate Changing Faces?

I am new to smartwatches. Always thought they were stupid, then I got a free W2R with my OP13, and loved it so much I just upgraded to the W3.

One thing I find annoying is, I like to change out my watch face or style often. Especially at night. I have one face I like in day time, and a dim darker one for nighttime, but I have to long press and manually change it every time... Is there a way to automate this? An app or setting that would allow me to say "At THIS time, change to THAT face" kind of thing? It would be amazing. I also like the idea of change to keep the brain stimulated, so it would be neat to change faces on days and such. Ideas? Impossible?