This is only available on the Mac. If documents are hosted on a Cloud Account which resides on a Mac then your other platform documents can be searched directly on that Mac.
Graph IDE includes Quick Look and Spotlight plugins (service). The Quick Look plugin enables viewing of Graph IDE's documents in the Finder as shown below, in this instance in coverflow representation.
The Spotlight plugin enables quick searching of metadata in the Graph IDE document, as shown below.
To set the meta data see Metadata Inspector Editor.
Notice how the Spotlight facility also shows a Quick Look view of the document. Quick Look and Spotlight can work in unison and each service can be utilized by any conforming application.