Our projects are organized in a master solution (containing every project) and multiple smaller solutions containing groupings of related projects.
I would like to share
In Resharper 2015
Go to Resharper -> Options -> Manage(pic 1) -> Options -> Import and Export(pic 2) -> from file....
And if you what to import it for your team you can to Solution settings then instead of Import and Export in Options go to Copy Settings to -> team-shared.
Hope this saves you some time.