There was a similar post some time ago that also searched for switches.
(Disclaimer the first few answers are wrong. I got confused and thought he was looking for footprints.) The later answers in this topic detail how to get the libs that are installed added to the template project such that they are added to newly created projects. (For old projects you need to add the libs manually)
By the way the term library convention is a bit misleading in this context. We have a library convention that details how symbols/footprints should look like to be accepted in the official lib. I changed your title to be more fitting of the topic.