diff --git a/Event/EventOverlay/EventOverlayJobTransforms/share/Rt_override.py b/Event/EventOverlay/EventOverlayJobTransforms/share/Rt_override.py
index 4428c20dc887fd76fd0a5af49db2d92182b37a60..f7559a0b402d0f1c0b8b66e6c45fc4c6bdc956ed 100644
--- a/Event/EventOverlay/EventOverlayJobTransforms/share/Rt_override.py
+++ b/Event/EventOverlay/EventOverlayJobTransforms/share/Rt_override.py
@@ -9,8 +9,8 @@ conddb.addFolderWithTag("TRT_OFL","/TRT/Calib/T0","TrtCalibT0-Physics-BLK-UPD4-F
 conddb.blockFolder("/MDT/RT")
 conddb.addFolderWithTag("MDT_OFL","/MDT/RT","MDTRT_Sim-00",force=True,forceMC=True)
 conddb.blockFolder("/MDT/RTBLOB")
-#conddb.addFolderWithTag("MDT_OFL","/MDT/RTBLOB","MDTRT-UPD4-09-BLOB",force=True,forceData=True)
-conddb.addFolderWithTag("MDT_OFL","/MDT/RTBLOB","MDTRT_Sim-00-BLOB",force=True,forceMC=True)
+#conddb.addFolderWithTag("MDT_OFL","/MDT/RTBLOB","MDTRT-UPD4-09-BLOB",force=True,forceData=True,className="CondAttrListCollection")
+conddb.addFolderWithTag("MDT_OFL","/MDT/RTBLOB","MDTRT_Sim-00-BLOB",force=True,forceMC=True,className="CondAttrListCollection")
 
 #can try using MC T0 constants, or force a data tag to use
 conddb.blockFolder("/MDT/T0")
diff --git a/Event/EventOverlay/EventOverlayJobTransforms/share/Rt_override_BLKPA-006-05.py b/Event/EventOverlay/EventOverlayJobTransforms/share/Rt_override_BLKPA-006-05.py
index 3f15021bb6ed867f6109e32b02a49b769090d641..6211fc2ff880833cc291e428ab7b4e3849d42701 100644
--- a/Event/EventOverlay/EventOverlayJobTransforms/share/Rt_override_BLKPA-006-05.py
+++ b/Event/EventOverlay/EventOverlayJobTransforms/share/Rt_override_BLKPA-006-05.py
@@ -9,7 +9,7 @@ conddb.addFolderWithTag("TRT_OFL","/TRT/Calib/RT","TrtCalibRt-MCnewDigi_ToTon_7T
 conddb.blockFolder("/MDT/RT")
 conddb.addFolderWithTag("MDT_OFL","/MDT/RT","MDTRT_Sim-00",force=True,forceMC=True)
 conddb.blockFolder("/MDT/RTBLOB")
-conddb.addFolderWithTag("MDT_OFL","/MDT/RTBLOB","MDTRT_Sim-00-BLOB",force=True,forceMC=True)
+conddb.addFolderWithTag("MDT_OFL","/MDT/RTBLOB","MDTRT_Sim-00-BLOB",force=True,forceMC=True,className="CondAttrListCollection")
 
 conddb.blockFolder("/PIXEL/HLT/DCS/HV")
 conddb.addFolderWithTag("PIXEL_ONL","/PIXEL/HLT/DCS/HV","PixDCSHV-UPD1-00",force=True,forceData=True)
diff --git a/Event/EventOverlay/EventOverlayJobTransforms/share/Rt_override_BLKPA-006-11.py b/Event/EventOverlay/EventOverlayJobTransforms/share/Rt_override_BLKPA-006-11.py
index 3135981902056b6dbc297d0445fa62b3e1ff92db..a1945ef1d8abbb150cefd1008d8545357d044ef7 100755
--- a/Event/EventOverlay/EventOverlayJobTransforms/share/Rt_override_BLKPA-006-11.py
+++ b/Event/EventOverlay/EventOverlayJobTransforms/share/Rt_override_BLKPA-006-11.py
@@ -12,7 +12,7 @@ conddb.addFolderWithTag("TRT_OFL","/TRT/Calib/RT","TrtCalibRt-MCnewDigi_ToTon_7T
 #conddb.blockFolder("/MDT/RT")
 #conddb.addFolderWithTag("MDT_OFL","/MDT/RT","MDTRT_Sim-00",force=True,forceMC=True)
 #conddb.blockFolder("/MDT/RTBLOB")
-#conddb.addFolderWithTag("MDT_OFL","/MDT/RTBLOB","MDTRT_Sim-00-BLOB",force=True,forceMC=True)
+#conddb.addFolderWithTag("MDT_OFL","/MDT/RTBLOB","MDTRT_Sim-00-BLOB",force=True,forceMC=True,className="CondAttrListCollection")
 
 conddb.blockFolder("/PIXEL/HLT/DCS/HV")
 conddb.addFolderWithTag("PIXEL_ONL","/PIXEL/HLT/DCS/HV","PixDCSHV-UPD1-00",force=True,forceData=True)
diff --git a/Event/EventOverlay/EventOverlayJobTransforms/share/Rt_override_CONDBR2-BLKPA-2015-12.py b/Event/EventOverlay/EventOverlayJobTransforms/share/Rt_override_CONDBR2-BLKPA-2015-12.py
index 93c12b1256eeb0530bcaec41d6caa5cf9205bdd5..07c9cfb66d52e1017a575ab17cc85758b1216730 100644
--- a/Event/EventOverlay/EventOverlayJobTransforms/share/Rt_override_CONDBR2-BLKPA-2015-12.py
+++ b/Event/EventOverlay/EventOverlayJobTransforms/share/Rt_override_CONDBR2-BLKPA-2015-12.py
@@ -7,7 +7,7 @@ from RecExConfig.RecAlgsFlags import recAlgs
 #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)
+conddb.addFolderWithTag("MDT_OFL","/MDT/RTBLOB","MDTRT_Sim-04-BLOB",force=True,forceMC=True,className="CondAttrListCollection")
 
 #from Guillaume
 conddb.blockFolder("/LAR/LArCellPositionShift");
diff --git a/Event/EventOverlay/EventOverlayJobTransforms/share/Rt_override_OFLCOND-MC15c-SDR-11.py b/Event/EventOverlay/EventOverlayJobTransforms/share/Rt_override_OFLCOND-MC15c-SDR-11.py
index 6af11529776a0b57da10d6b96d73b7a09f56272e..f0ebc6b652a01142121312a5e7e0d7a01164bcef 100644
--- a/Event/EventOverlay/EventOverlayJobTransforms/share/Rt_override_OFLCOND-MC15c-SDR-11.py
+++ b/Event/EventOverlay/EventOverlayJobTransforms/share/Rt_override_OFLCOND-MC15c-SDR-11.py
@@ -7,7 +7,7 @@ from RecExConfig.RecAlgsFlags import recAlgs
 #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)
+conddb.addFolderWithTag("MDT_OFL","/MDT/RTBLOB","MDTRT_Sim-04-BLOB",force=True,forceMC=True,className="CondAttrListCollection")
 
 #from Guillaume
 conddb.blockFolder("/LAR/LArCellPositionShift");
diff --git a/Event/EventOverlay/EventOverlayJobTransforms/share/Rt_override_OFLCOND-MC16-SDR-23.py b/Event/EventOverlay/EventOverlayJobTransforms/share/Rt_override_OFLCOND-MC16-SDR-23.py
index 30d531e4703c474f26eca47ce618de7aa88d66dd..acf529239d1a7028455153bbf02dd5a6397b771f 100644
--- a/Event/EventOverlay/EventOverlayJobTransforms/share/Rt_override_OFLCOND-MC16-SDR-23.py
+++ b/Event/EventOverlay/EventOverlayJobTransforms/share/Rt_override_OFLCOND-MC16-SDR-23.py
@@ -7,7 +7,7 @@ from RecExConfig.RecAlgsFlags import recAlgs
 #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)
+conddb.addFolderWithTag("MDT_OFL","/MDT/RTBLOB","MDTRT_Sim-04-BLOB",force=True,forceMC=True,className="CondAttrListCollection")
 
 #from Guillaume
 conddb.blockFolder("/LAR/LArCellPositionShift");
diff --git a/Event/EventOverlay/EventOverlayJobTransforms/share/Rt_override_OFLCOND-MC16-SDR-26.py b/Event/EventOverlay/EventOverlayJobTransforms/share/Rt_override_OFLCOND-MC16-SDR-26.py
index 6e18b3c21e3196fc64df9664bfa4bc6ed89cd32d..54c3b25854d8dd0a293bec34304be82b7a29e0e9 100644
--- a/Event/EventOverlay/EventOverlayJobTransforms/share/Rt_override_OFLCOND-MC16-SDR-26.py
+++ b/Event/EventOverlay/EventOverlayJobTransforms/share/Rt_override_OFLCOND-MC16-SDR-26.py
@@ -7,7 +7,7 @@ from RecExConfig.RecAlgsFlags import recAlgs
 #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)
+conddb.addFolderWithTag("MDT_OFL","/MDT/RTBLOB","MDTRT_Sim-04-BLOB",force=True,forceMC=True,className="CondAttrListCollection")
 
 #from Guillaume
 conddb.blockFolder("/LAR/LArCellPositionShift");
diff --git a/Event/EventOverlay/EventOverlayJobTransforms/share/Rt_override_OFLCOND-MC16-SDR-26_folders100M.py b/Event/EventOverlay/EventOverlayJobTransforms/share/Rt_override_OFLCOND-MC16-SDR-26_folders100M.py
index a89e3b674f50c3709f8077e967972304a5569e63..40622f6a7e96f1d9932e6dc5fbd7ae8168de6e4c 100644
--- a/Event/EventOverlay/EventOverlayJobTransforms/share/Rt_override_OFLCOND-MC16-SDR-26_folders100M.py
+++ b/Event/EventOverlay/EventOverlayJobTransforms/share/Rt_override_OFLCOND-MC16-SDR-26_folders100M.py
@@ -7,7 +7,7 @@ from RecExConfig.RecAlgsFlags import recAlgs
 #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)
+conddb.addFolderWithTag("MDT_OFL","/MDT/RTBLOB","MDTRT_Sim-04-BLOB",force=True,forceMC=True,className="CondAttrListCollection")
 
 #from Guillaume
 conddb.blockFolder("/LAR/LArCellPositionShift");
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
index 5cfa7b6771e249c59c573f4a5db0e0a77b93c4ce..c9d33be0789a5c1c90abbf371a1dcf8bd3706715 100644
--- a/Event/EventOverlay/EventOverlayJobTransforms/share/Rt_override_OFLCOND-MC16-SDR-27.py
+++ b/Event/EventOverlay/EventOverlayJobTransforms/share/Rt_override_OFLCOND-MC16-SDR-27.py
@@ -7,7 +7,7 @@ from RecExConfig.RecAlgsFlags import recAlgs
 #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)
+conddb.addFolderWithTag("MDT_OFL","/MDT/RTBLOB","MDTRT_Sim-04-BLOB",force=True,forceMC=True,className="CondAttrListCollection")
 
 #from Guillaume
 conddb.blockFolder("/LAR/LArCellPositionShift");
diff --git a/Event/EventOverlay/EventOverlayJobTransforms/share/Rt_override_old.py b/Event/EventOverlay/EventOverlayJobTransforms/share/Rt_override_old.py
index 82fd2d7bd4996e762518cb5a420593cadaf12aef..21112501e6e14f992e4a898bfce1dad540714f0f 100755
--- a/Event/EventOverlay/EventOverlayJobTransforms/share/Rt_override_old.py
+++ b/Event/EventOverlay/EventOverlayJobTransforms/share/Rt_override_old.py
@@ -12,7 +12,7 @@ conddb.addFolderWithTag("TRT_OFL","/TRT/Calib/RT","TrtCalibRt-MC09_900GeV-REP-Fi
 conddb.blockFolder("/MDT/RT")
 conddb.addFolderWithTag("MDT_OFL","/MDT/RT","MDTRT_Sim-00",force=True,forceMC=True)
 conddb.blockFolder("/MDT/RTBLOB")
-conddb.addFolderWithTag("MDT_OFL","/MDT/RTBLOB","MDTRT_Sim-00-BLOB",force=True,forceMC=True)
+conddb.addFolderWithTag("MDT_OFL","/MDT/RTBLOB","MDTRT_Sim-00-BLOB",force=True,forceMC=True,className="CondAttrListCollection")
 
 conddb.blockFolder("/PIXEL/HLT/DCS/HV")
 conddb.addFolderWithTag("PIXEL_ONL","/PIXEL/HLT/DCS/HV","PixDCSHV-UPD1-00",force=True,forceData=True)