Parameter state controls the entire template; state1 controls the building essays; state2 controls the civility essays; state3 controls the notability essays; state4 controls the humour essays; state5 controls the 'About essays' section. These can be set to expanded or collapsed. The above example will produce this:
This template combines the content of the 4 separate templates into one location, for easier watchlisting / updating / organizing / non-duplication / discovery:
{{Essays on building Wikipedia}}
{{Civility}}
{{Essays on notability}}
{{Humorous essays}}
If you update this navbox with an essay, please also add it to the appropriate navbox above, to try to keep sync between them.
It was initially suggested and developed at Wikipedia talk:WikiProject Essays § Navbox separation or cohesion.