+ AliExternalTrackParam *MakeTrack(const AliExternalTrackParam *track0, const AliExternalTrackParam *track1);
+ AliExternalTrackParam *MakeCombinedTrack(const AliExternalTrackParam *track0, const AliExternalTrackParam *track1);
+
+ void UpdateTrack(AliExternalTrackParam &track0, const AliExternalTrackParam &track1);
+ //
+ void FillHistoPerformance(AliExternalTrackParam *par0, AliExternalTrackParam *par1, AliExternalTrackParam *inner0, AliExternalTrackParam *inner1, AliTPCseed *seed0, AliTPCseed *seed1);
+
+