It does not appear possible to click on a BINARY property and see the actual content. This should be possible, albeit with some special and careful handling (it's like descending to a property, which JCR actually allows since you can specify a path to a property). BINARY property values that are displayable (e.g., based upon accepted and configurable MIME types?) should be displayed with line numbers. BINARY values that are not displayable should be summarized (size in bytes, SHA-1, MIME type). Both should allow downloading the actual content.