Avid users of Everything may want to plant identifying info in a document without putting it in the filename. For example, I might want to name a file "Travel Tips," but be able to find it with Everything using the terms "Trips" and "Vacation." If I could put these terms into the Keywords property, I can keep my filename clean.
It would be great to have a single to be able to search a few document properties:
There would be no need to have an search option corresponding to each property. A single option, "Search Properties (Subject, etc.)" could be an option either directly in the Search Menu or in Search Options.