Make three individual seeders OIState can be taken directly from configuration hltL3TrajSeedOIState = TSG.l3seeds("OIState") hltL3TrajSeedOIState.ServiceParameters.Propagators = cms.untracked.vstring() OIProp(hltL3TrajSeedOIState,hltL3TrajSeedOIState.TkSeedGenerator) More...