In Xcode, you can use Find → Find Next or CommandG to find the next result matching the current search, but only in the current document. Is there a similar command that will find the next search result in a project-wide search? This would be similar to how Navigate → Jump to Next Issue (Command') works, except for Find results instead of compiler issues. It should jump to the text itself in the editor, not the listing of the find result in the sidebar.
Xcode 8 has this, use ctrl-cmd-G.