settings (proc)

proc settings: “

verb/set
  name
  desc
  category
  hidden
  popup_menu
  instant
  invisibility
  src
  background
  waitfor

Procs and verbs are the same “type” so these attributes may be set for both procs and verbs; most of them only apply to verbs, so they only take effect if the proc is invoked as a verb (by adding it to a verb list).