Bug fix, additon of variable and histograms.
1) Line 1027 FPTime[ind] = ( sumFPTime / numFPTime );
is relaced by FPTime[ind] = ( sumPlaneTime[ind] / numPlaneTime[ind] );

and following code is added before loop over planes:
      Int_t numPlaneTime[fNPlanes];
      Double_t sumPlaneTime[fNPlanes],FPTime[fNPlanes];
      for ( Int_t dp = 0; dp <  fNPlanes; dp++ ){
	numPlaneTime[dp] = 0;
	sumPlaneTime[dp] = 0.;
	FPTime[dp] = 0.;
      }

2) Follwoing variables are added:
    {"fpHitsTime","Time at focal plane from all hits","FPTime"},
    {"fpTimeDif1","Time differnce betwwen plane 1 & 2","FPTimeDif1"},
    {"fpTimeDif2","Time differnce betwwen plane 1 & 3","FPTimeDif2"},
    {"fpTimeDif3","Time differnce betwwen plane 1 & 4","FPTimeDif3"},
    {"fpTimeDif4","Time differnce betwwen plane 2 & 3","FPTimeDif4"},
    {"fpTimeDif5","Time differnce betwwen plane 2 & 4","FPTimeDif5"},
    {"fpTimeDif6","Time differnce betwwen plane 3 & 4","FPTimeDif6"},

3) examples/output.def is modified to include the histograms
of time difference of hodoscope planes.