Is it possible to check that for a given folder or space some of its content(s) (maybe in one or more of its sub-folder(s)) is(are) currently used (locked) by another user ?
If the icon shows a key you locked the document. If there is only a lock without a key you can hover over the icon to see the name of the person who locked the document.
Sorry my question was not very clear. What I mean is : is content locking information propagated to its space (and maybe other parent space(s)) and "displayable" at each space icon level ? It would avoid to launch any search or display any space content to see at high level that some resource(s) is(are) currently locked for some space.