All export commands can be reached using the export dispatcher, which is a prefix key that prompts for an additional key specifying the command. Normally the entire file is exported, but if there is an active region that contains one outline tree, the first heading is used as document title and the subtrees are exported.
org-export)org-export-visible)org-export)org-export-run-in-background, i.e. request
background processing if not set, or force processing in the
current Emacs process if set.[1] To make this behavior the default,
customize the variable
org-export-run-in-background.