diff --git a/Event/EventOverlay/EventOverlayJobTransforms/share/Rt_override_OFLCOND-MC16-SDR-27.py b/Event/EventOverlay/EventOverlayJobTransforms/share/Rt_override_OFLCOND-MC16-SDR-27.py
new file mode 100644
index 0000000000000000000000000000000000000000..fc9762e02689afa12a6f86c0e6998411a8b7b48c
--- /dev/null
+++ b/Event/EventOverlay/EventOverlayJobTransforms/share/Rt_override_OFLCOND-MC16-SDR-27.py
@@ -0,0 +1,217 @@
+from IOVDbSvc.CondDB import conddb
+from AthenaCommon.DetFlags import DetFlags
+from RecExConfig.RecAlgsFlags import recAlgs
+########################################
+
+#use MC MDT RT functions
+#conddb.blockFolder("/MDT/RT")
+#conddb.addFolderWithTag("MDT_OFL","/MDT/RT","MDTRT_Sim-04",force=True,forceMC=True)
+conddb.blockFolder("/MDT/RTBLOB")
+conddb.addFolderWithTag("MDT_OFL","/MDT/RTBLOB","MDTRT_Sim-04-BLOB",force=True,forceMC=True)
+
+#from Guillaume
+conddb.blockFolder("/LAR/LArCellPositionShift");
+conddb.addFolderWithTag("LAR_OFL","/LAR/LArCellPositionShift","LArCellPositionShift-ideal",force=True,forceMC=True);
+conddb.addOverride("/LAR/ElecCalibOfl/Shape/RTM/4samples1phase","LARElecCalibOflShapeRTM4samples1phase-RUN2-UPD4-00")
+conddb.addOverride("/LAR/ElecCalibOfl/OFC/PhysWave/RTM/4samples1phase","LARElecCalibOflOFCPhysWaveRTM4samples1phase-RUN2-UPD4-00")
+svcMgr.PoolSvc.ReadCatalog+=["xmlcatalog_file:"+"/cvmfs/atlas-condb.cern.ch/repo/conditions/poolcond/PoolFileCatalog.xml"]
+
+conddb.blockFolder("/PIXEL/ReadoutSpeed")
+conddb.addFolderSplitMC("PIXEL","/PIXEL/ReadoutSpeed","/PIXEL/ReadoutSpeed",force=True)
+
+conddb.blockFolder("/TRT/Cond/DigVers")
+conddb.addFolderWithTag("TRT_OFL","/TRT/Cond/DigVers","TRTCondDigVers-Collisions-01",force=True,forceMC=True)
+
+
+###################################################
+print "RT OVERRIDE, for OFLCOND-MC16-SDR-27 MC condition tag "
+#See https://twiki.cern.ch/twiki/bin/viewauth/AtlasComputing/ConditionsTagOflCondMc16Sdr27
+# https://atlas-tagservices.cern.ch/tagservices/RunBrowser/runBrowserReport/rBR_CB_Report.php?CBAction=GlobalTagReport&cbgt=CONDBR2-BLKPA-2018-12
+
+conddb.blockFolder("/LAR/BadChannels/BadChannels");
+conddb.blockFolder("/LAR/BadChannelsOfl/BadChannels");
+conddb.addFolderWithTag("LAR_OFL","/LAR/BadChannels/BadChannels","LArBadChannelsBadChannels-IOVDEP-08",force=True,forceMC=True);
+conddb.blockFolder("/LAR/BadChannels/MissingFEBs");
+conddb.blockFolder("/LAR/BadChannelsOfl/MissingFEBs");
+conddb.addFolderWithTag("LAR_OFL","/LAR/BadChannels/MissingFEBs","LArBadChannelsMissingFEBs-IOVDEP-04",force=True,forceMC=True)
+
+if not "EOJT_alignMC" in globals():
+ print "EOJT_alignMC not found in globals(), so aligning ID to data conditions"
+else:
+ print "EOJT_alignMC found in globals(), so aligning ID to MC conditions"
+ conddb.blockFolder("/TRT/Align")
+ conddb.addFolderWithTag("TRT_OFL","/TRT/Align","TRTAlign-RUN2-BLK-UPD4-13",force=True,forceMC=True)
+ conddb.blockFolder("/LAR/Align")
+ conddb.addFolderWithTag("LAR_OFL","/LAR/Align","LARAlign-RUN2-UPD4-03",force=True,forceMC=True)
+ conddb.blockFolder("/Indet/Align")
+ conddb.addFolderWithTag("INDET_OFL","/Indet/Align","InDetAlign-RUN2-BLK-UPD4-16",force=True,forceMC=True)
+
+#to set beam spot from MC
+#conddb.blockFolder("/Indet/Beampos")
+#conddb.addFolderWithTag("INDET_OFL","/Indet/Beampos","IndetBeampos-RunDep-MC16-BestKnowledge-005",force=True,forceMC=True)
+
+#to run overlay chain with trigger
+if (hasattr(runArgs, "triggerConfig") and runArgs.triggerConfig!="NONE") or (hasattr(recAlgs,'doTrigger') and recAlgs.doTrigger() and DetFlags.LVL1_on()):
+ print "running with trigger "
+ conddb.addOverride("/GLOBAL/Onl/BTagCalib/RUN12","BTagCalibRUN12Onl-08-40")
+else:
+ print "running with no trigger "
+
+if DetFlags.writeRDOPool.pixel_on():
+ conddb.addFolder("PIXEL_OFL","/PIXEL/PixReco")
+
+conddb.blockFolder("/PIXEL/PixdEdx")
+conddb.addFolderWithTag("PIXEL_OFL","/PIXEL/PixdEdx","PixdEdx-SIM-RUN124-000-00",force=True,forceMC=True)
+mcIDoverlay=True
+if mcIDoverlay:
+ print "ACH777: Using MC overlay Lorentz DB settings"
+ conddb.blockFolder("/PIXEL/DCS/HV")
+ conddb.addFolderWithTag("DCS_OFL","/PIXEL/DCS/HV","PixDCSHV-SIM-MC16-000-07",force=True,forceMC=True)
+ conddb.blockFolder("/PIXEL/DCS/TEMPERATURE")
+ conddb.addFolderWithTag("DCS_OFL","/PIXEL/DCS/TEMPERATURE","PixDCSTemp-SIM-MC16-000-09",force=True,forceMC=True)
+ conddb.blockFolder("/SCT/DCS/HV")
+ conddb.addFolderWithTag("DCS_OFL","/SCT/DCS/HV","SctDcsHv-MC16-02",force=True,forceMC=True)
+ conddb.blockFolder("/SCT/DCS/MODTEMP")
+ conddb.addFolderWithTag("DCS_OFL","/SCT/DCS/MODTEMP","SctDcsModtemp-MC16-02",force=True,forceMC=True)
+mcIDoverlay2=True
+if mcIDoverlay2:
+ print "ACH777: Using more MC overlay ID DB settings"
+ conddb.blockFolder("/Indet/PixelDist")
+ conddb.addFolderWithTag("INDET_OFL","/Indet/PixelDist","InDetPixelDist-nominal",force=True,forceMC=True)
+ conddb.blockFolder("/PIXEL/PixelClustering/PixelClusNNCalib")
+ conddb.addFolderWithTag("PIXEL_OFL","/PIXEL/PixelClustering/PixelClusNNCalib","PixelClusNNCalib-SIM-RUN12-000-06",force=True,forceMC=True)
+ conddb.blockFolder("/PIXEL/LorentzAngleScale")
+ conddb.addFolderWithTag("PIXEL_OFL","/PIXEL/LorentzAngleScale","PixLorentzAngleScale-SIM-RUN124-000-00",force=True,forceMC=True)
+ conddb.blockFolder("/PIXEL/PixCalib")
+ conddb.addFolderWithTag("PIXEL_OFL","/PIXEL/PixCalib","PixCalib-SIM-MC16-000-09 ",force=True,forceMC=True)
+
+conddb.blockFolder("/MUONALIGN/MDT/BARREL")
+conddb.blockFolder("/MUONALIGN/MDT/ENDCAP/SIDEA")
+conddb.blockFolder("/MUONALIGN/MDT/ENDCAP/SIDEC")
+conddb.blockFolder("/MUONALIGN/TGC/SIDEA")
+conddb.blockFolder("/MUONALIGN/TGC/SIDEC")
+
+#use updated muon alignments
+conddb.addFolderWithTag("MUONALIGN_OFL","/MUONALIGN/MDT/BARREL","MuonAlignMDTBarrelAlign-RUN2-BA_ROLLING_09-BLKP-UPD4-00",force=True,forceData=True)
+conddb.addFolderWithTag("MUONALIGN_OFL","/MUONALIGN/MDT/ENDCAP/SIDEA","MuonAlignMDTEndCapAAlign-RUN2-ECA_ROLLING_2015_02_01-UPD4-02",force=True,forceData=True)
+conddb.addFolderWithTag("MUONALIGN_OFL","/MUONALIGN/MDT/ENDCAP/SIDEC","MuonAlignMDTEndCapCAlign-RUN2-ECC_ROLLING_2015_02_01-UPD4-02",force=True,forceData=True)
+
+#the TGC alignments had overlap issues... caused G4 crash
+conddb.addFolderWithTag("MUONALIGN_OFL","/MUONALIGN/TGC/SIDEA","MuonAlignTGCEndCapAAlign-0001-DEFAULT",force=True,forceMC=True)
+conddb.addFolderWithTag("MUONALIGN_OFL","/MUONALIGN/TGC/SIDEC","MuonAlignTGCEndCapCAlign-0001-DEFAULT",force=True,forceMC=True)
+
+conddb.blockFolder("/SCT/DAQ/Config/Chip")
+conddb.addFolderSplitMC("SCT","/SCT/DAQ/Config/Chip","/SCT/DAQ/Config/Chip",force=True)
+conddb.blockFolder("/SCT/DAQ/Config/Module")
+conddb.addFolderSplitMC("SCT","/SCT/DAQ/Config/Module","/SCT/DAQ/Config/Module",force=True)
+
+dofolderoverrides = True
+runN=365681
+lumiBlock=500
+if dofolderoverrides:
+ print "ACH - overriding folder access patterns"
+ conddb.dumpFolderTags('myconddb.txt',True)
+
+overlaylongfolders = []
+def setrunforfolder(name):
+ if conddb.folderRequested(name):
+ print "setting run to "+str(runN)+" and lumiblock "+str(lumiBlock)
+ frnTag="<forceRunNumber>"+str(runN)+"</forceRunNumber>"
+ flbTag="<forceLumiblockNumber>"+str(lumiBlock)+"</forceLumiblockNumber>"
+ conddb.addMarkup(name,frnTag)
+ conddb.addMarkup(name,flbTag)
+ global overlaylongfolders
+ overlaylongfolders += [name]
+
+if dofolderoverrides:
+ setrunforfolder("/CALO/CaloSwClusterCorrections/calhits")
+ setrunforfolder("/CALO/CaloSwClusterCorrections/clcon")
+ setrunforfolder("/CALO/CaloSwClusterCorrections/deadOTXback")
+ setrunforfolder("/CALO/CaloSwClusterCorrections/deadOTXps")
+ setrunforfolder("/CALO/CaloSwClusterCorrections/etamod")
+ setrunforfolder("/CALO/CaloSwClusterCorrections/etaoff")
+ setrunforfolder("/CALO/CaloSwClusterCorrections/gap")
+ setrunforfolder("/CALO/CaloSwClusterCorrections/larupdate")
+ setrunforfolder("/CALO/CaloSwClusterCorrections/lwc")
+ setrunforfolder("/CALO/CaloSwClusterCorrections/phimod")
+ setrunforfolder("/CALO/CaloSwClusterCorrections/phioff")
+ setrunforfolder("/CALO/CaloSwClusterCorrections/rfac")
+ setrunforfolder("/CALO/CaloSwClusterCorrections/trcorr")
+ setrunforfolder("/CALO/H1Weights/H1WeightsCone4Topo")
+ setrunforfolder("/CALO/Identifier/CaloTTOnAttrIdMapAtlas")
+ setrunforfolder("/CALO/Identifier/CaloTTOnOffIdMapAtlas")
+ setrunforfolder("/CALO/Identifier/CaloTTPpmRxIdMapAtlas")
+ setrunforfolder("/CALO/JetCalib/EtaMassEnergyCorr")
+ setrunforfolder("/CALO/JetCalib/JetPropertyInvertResponseTool")
+ setrunforfolder("/CALO/JetCalib/MCNumInversionResponse")
+ setrunforfolder("/CALO/JetCalib/OffsetCorrection")
+ setrunforfolder("/CALO/JetCalib/TrackAngularCorrection")
+ setrunforfolder("/CALO/JetCalib/TrackBasedResponseCorrection")
+ setrunforfolder("/CALO/Ofl/Pedestal/CellPedestal")
+ setrunforfolder("/CALO/Pedestal/CellPedestal")
+ setrunforfolder("/CSC/PSLOPE")
+ setrunforfolder("/CSC/RMS")
+ setrunforfolder("/CSC/T0BASE")
+ setrunforfolder("/CSC/T0PHASE")
+ setrunforfolder("/GLOBAL/DETSTATUS/DEFECTLOGIC")
+ setrunforfolder("/Indet/TrkErrorScaling")
+ setrunforfolder("/LAR/CellCorrOfl/deadOTX")
+ setrunforfolder("/LAR/ElecCalibOfl/LArPileupShape")
+ setrunforfolder("/MDT/CABLING/MAP_SCHEMA")
+ setrunforfolder("/MDT/CABLING/MEZZANINE_SCHEMA")
+ setrunforfolder("/MUONALIGN/MDT/ASBUILTPARAMS")
+ setrunforfolder("/MUONALIGN/TGC/SIDEA")
+ setrunforfolder("/MUONALIGN/TGC/SIDEC")
+ setrunforfolder("/PIXEL/LorentzAngleScale")
+ setrunforfolder("/PIXEL/NoiseMapLong")
+ setrunforfolder("/PIXEL/PixMapLong")
+ setrunforfolder("/PIXEL/PixMapShort")
+ setrunforfolder("/PIXEL/PixdEdx")
+ setrunforfolder("/PIXEL/PixelClustering/PixelClusNNCalib")
+ setrunforfolder("/PIXEL/PixelClustering/PixelCovCorr")
+ setrunforfolder("/RPC/CABLING/MAP_SCHEMA")
+ setrunforfolder("/RPC/CABLING/MAP_SCHEMA_CORR")
+ setrunforfolder("/RPC/DQMF/ELEMENT_STATUS")
+ setrunforfolder("/TGC/CABLING/MAP_SCHEMA")
+ setrunforfolder("/TILE/OFL02/CALIB/CIS/NLN")
+ setrunforfolder("/TILE/OFL02/CALIB/EMS")
+ setrunforfolder("/TILE/OFL02/CALIB/LAS/FIBER")
+ setrunforfolder("/TILE/OFL02/CALIB/LAS/NLN")
+ setrunforfolder("/TILE/OFL02/NOISE/AUTOCR")
+ setrunforfolder("/TILE/OFL02/PULSESHAPE/CIS/LEAK100")
+ setrunforfolder("/TILE/OFL02/PULSESHAPE/CIS/LEAK5P2")
+ setrunforfolder("/TILE/OFL02/PULSESHAPE/CIS/PULSE100")
+ setrunforfolder("/TILE/OFL02/PULSESHAPE/CIS/PULSE5P2")
+ setrunforfolder("/TILE/OFL02/PULSESHAPE/LAS")
+ setrunforfolder("/TILE/OFL02/PULSESHAPE/PHY")
+ setrunforfolder("/TILE/OFL02/TIME/CHANNELOFFSET/CIS")
+ setrunforfolder("/TRT/Calib/DX")
+ setrunforfolder("/TRT/Calib/HTCalib")
+ setrunforfolder("/TRT/Calib/PID")
+ setrunforfolder("/TRT/Calib/PID_RToT")
+ setrunforfolder("/TRT/Calib/PID_RToTver_New")
+ setrunforfolder("/TRT/Calib/PID_vector")
+ setrunforfolder("/TRT/Calib/PIDver_New")
+ setrunforfolder("/TRT/Calib/ToT/ToTValue")
+ setrunforfolder("/TRT/Calib/ToT/ToTVectors")
+ setrunforfolder("/TRT/Calib/ToTCalib")
+ setrunforfolder("/TRT/Calib/errors")
+ setrunforfolder("/TRT/Calib/errors2d")
+ setrunforfolder("/TRT/Calib/slopes")
+ setrunforfolder("/CSC/FTHOLD")
+ setrunforfolder("/CSC/NOISE")
+ setrunforfolder("/CSC/PED")
+ setrunforfolder("/GLOBAL/BTagCalib/Onl/RUN12")
+ setrunforfolder("/Indet/PixelDist")
+ setrunforfolder("/LAR/ElecCalibOfl/OFC/PhysWave/RTM/4samples3bins17phases")
+ setrunforfolder("/LAR/ElecCalibOfl/Shape/RTM/4samples3bins17phases")
+ setrunforfolder("/PIXEL/CablingMap")
+ setrunforfolder("/PIXEL/NoiseMapShort")
+ setrunforfolder("/PIXEL/PixReco")
+ setrunforfolder("/Indet/AlignL3")
+ setrunforfolder("/MUONALIGN/ERRS")
+ setrunforfolder("/RPC/TRIGGER/CM_THR_ETA")
+ setrunforfolder("/RPC/TRIGGER/CM_THR_PHI")
+ setrunforfolder("/TRT/AlignL2")
+
+print "set run "+str(runN)+" and lumiblock "+str(lumiBlock)+" for folders: ", overlaylongfolders