diff --git a/stepmania/src/Course.cpp b/stepmania/src/Course.cpp
index 7fa160c148..bfe2b9d352 100644
--- a/stepmania/src/Course.cpp
+++ b/stepmania/src/Course.cpp
@@ -1111,6 +1111,14 @@ bool Course::IsRanking() const
 	return false;
 }
 
+void Course::GetAllCachedTrails( vector<Trail *> &out )
+{
+	FOREACH_StepsType( st )
+		FOREACH_ShownCourseDifficulty( cd )
+			if( m_TrailCacheValid[st][cd] && !m_TrailCacheNull[st][cd] )
+				out.push_back( &m_TrailCache[st][cd] );
+}
+
 /*
  * (c) 2001-2004 Chris Danford, Glenn Maynard
  * All rights reserved.
diff --git a/stepmania/src/Course.h b/stepmania/src/Course.h
index 4af5b585cc..9a895088a9 100644
--- a/stepmania/src/Course.h
+++ b/stepmania/src/Course.h
@@ -149,6 +149,8 @@ public:
 	/* Call when a Song or its Steps are deleted/changed. */
 	void Invalidate( Song *pStaleSong );
 
+	void GetAllCachedTrails( vector<Trail *> &out );
+
 private:
 	bool GetTrailUnsorted( StepsType st, CourseDifficulty cd, Trail &trail ) const;
 	bool GetTrailSorted( StepsType st, CourseDifficulty cd, Trail &trail ) const;