Any way of getting tabs vs. spaces behavior tied to the sln?

There are some repositories I work on that prefer tabs instead of spaces, but the majority of it is spaces.

Is there any way of getting a "use tabs instead" setting/behavior (which I realize is kept in VS, unfortunately) for just that sln, similar to the other R# settings (like C# naming conventions) that we currently store in the sln.DotSettings in that repo?

VS2012, R# 7.0.1 FWIW

Thanks!