Complications menu for Xcode missing?

I'm trying to add complications to an existing app via the directions of

https://developer.apple.com/documentation/clockkit/deprecated_articles_and_symbols/creating_complications_for_your_watchos_app/enabling_complications_for_your_watchos_app

however, Xcode 15 does not have "Complications Configuration" in the Project menu so I can't put in the correct info for "Data Source Class" and "Complications Group". Can someone direct me where to go for up to date information regarding how to do this in Xcode 15?