In Craft 2 there used to be a Nested Entries
field, but this is not available in Craft 3.
I know I can do {parent.uri}/{slug}
in the Entry URI Format
field, but if I want it to be appended by something static it doesn't work.
i.e. static/{parent.uri}/{slug}
doesn't work because children uri sets to static/static/parent/child
(edited)