diff --git a/Trigger/TrigValidation/TrigAnalysisTest/share/ref_RDOtoRDOTrig_mt1_build.ref b/Trigger/TrigValidation/TrigAnalysisTest/share/ref_RDOtoRDOTrig_mt1_build.ref
index d126bbd2492ba7d3d90375329c8d285e5094d28c..869acfa17a01d411494e251b927936f271900d56 100644
--- a/Trigger/TrigValidation/TrigAnalysisTest/share/ref_RDOtoRDOTrig_mt1_build.ref
+++ b/Trigger/TrigValidation/TrigAnalysisTest/share/ref_RDOtoRDOTrig_mt1_build.ref
@@ -39,31 +39,31 @@ TrigSignatureMoniMT INFO -- #557204938 Events
TrigSignatureMoniMT INFO -- #557204938 Features 12 4 4 4 - -
TrigSignatureMoniMT INFO HLT_2mu4_bDimu_L12MU4 #1730084172
TrigSignatureMoniMT INFO -- #1730084172 Events 4 4 4 4 4 4 - - 1
-TrigSignatureMoniMT INFO -- #1730084172 Features 16 16 24 11 - -
+TrigSignatureMoniMT INFO -- #1730084172 Features 16 16 24 19 - -
TrigSignatureMoniMT INFO HLT_2mu4_bJpsimumu_L12MU4 #4276347155
TrigSignatureMoniMT INFO -- #4276347155 Events 4 4 4 4 4 4 - - 1
-TrigSignatureMoniMT INFO -- #4276347155 Features 16 16 24 11 - -
+TrigSignatureMoniMT INFO -- #4276347155 Features 16 16 24 19 - -
TrigSignatureMoniMT INFO HLT_2mu4_bUpsimumu_L12MU4 #4008168535
TrigSignatureMoniMT INFO -- #4008168535 Events 4 4 4 4 4 4 - - 0
-TrigSignatureMoniMT INFO -- #4008168535 Features 16 16 24 10 - -
+TrigSignatureMoniMT INFO -- #4008168535 Features 16 16 24 18 - -
TrigSignatureMoniMT INFO HLT_2mu4_muonqual_L12MU4 #1584776935
TrigSignatureMoniMT INFO -- #1584776935 Events 4 4 4 4 4 4 - - 4
-TrigSignatureMoniMT INFO -- #1584776935 Features 16 16 24 20 - -
+TrigSignatureMoniMT INFO -- #1584776935 Features 16 16 24 36 - -
TrigSignatureMoniMT INFO HLT_2mu6Comb_L12MU6 #2046267508
TrigSignatureMoniMT INFO -- #2046267508 Events 4 4 4 3 - - - - 3
TrigSignatureMoniMT INFO -- #2046267508 Features 16 12 - - - -
TrigSignatureMoniMT INFO HLT_2mu6_10invm70_L1MU6 #1316992871
TrigSignatureMoniMT INFO -- #1316992871 Events 10 10 4 3 3 3 2 - 0
-TrigSignatureMoniMT INFO -- #1316992871 Features 16 12 18 16 2 -
+TrigSignatureMoniMT INFO -- #1316992871 Features 16 12 18 28 2 -
TrigSignatureMoniMT INFO HLT_2mu6_Dr_L12MU4 #3304584056
TrigSignatureMoniMT INFO -- #3304584056 Events 4 4 4 3 - - - - 3
TrigSignatureMoniMT INFO -- #3304584056 Features 16 12 - - - -
TrigSignatureMoniMT INFO HLT_2mu6_L12MU6 #1747073535
TrigSignatureMoniMT INFO -- #1747073535 Events 4 4 4 3 3 3 - - 3
-TrigSignatureMoniMT INFO -- #1747073535 Features 16 12 18 16 - -
+TrigSignatureMoniMT INFO -- #1747073535 Features 16 12 18 28 - -
TrigSignatureMoniMT INFO HLT_2mu6_muonqual_L12MU6 #2398136098
TrigSignatureMoniMT INFO -- #2398136098 Events 4 4 4 3 3 3 - - 3
-TrigSignatureMoniMT INFO -- #2398136098 Features 16 12 18 16 - -
+TrigSignatureMoniMT INFO -- #2398136098 Features 16 12 18 28 - -
TrigSignatureMoniMT INFO HLT_3j200_L1J100 #2199422919
TrigSignatureMoniMT INFO -- #2199422919 Events 3 3 0 - - - - - 0
TrigSignatureMoniMT INFO -- #2199422919 Features 0 - - - - -
@@ -366,22 +366,22 @@ TrigSignatureMoniMT INFO -- #996392590 Events
TrigSignatureMoniMT INFO -- #996392590 Features 14 13 - - - -
TrigSignatureMoniMT INFO HLT_mu6_L1MU6 #2560542253
TrigSignatureMoniMT INFO -- #2560542253 Events 10 10 10 10 10 10 - - 10
-TrigSignatureMoniMT INFO -- #2560542253 Features 14 13 16 15 - -
+TrigSignatureMoniMT INFO -- #2560542253 Features 14 13 16 21 - -
TrigSignatureMoniMT INFO HLT_mu6_idperf_L1MU6 #934918532
TrigSignatureMoniMT INFO -- #934918532 Events 10 10 10 10 10 10 - - 10
-TrigSignatureMoniMT INFO -- #934918532 Features 14 14 17 18 - -
+TrigSignatureMoniMT INFO -- #934918532 Features 14 14 17 27 - -
TrigSignatureMoniMT INFO HLT_mu6_ivarmedium_L1MU6 #1012713062
TrigSignatureMoniMT INFO -- #1012713062 Events 10 10 10 10 10 10 6 - 6
-TrigSignatureMoniMT INFO -- #1012713062 Features 14 13 16 15 6 -
+TrigSignatureMoniMT INFO -- #1012713062 Features 14 13 16 21 6 -
TrigSignatureMoniMT INFO HLT_mu6_msonly_L1MU6 #3895421032
TrigSignatureMoniMT INFO -- #3895421032 Events 10 10 10 0 10 - - - 10
TrigSignatureMoniMT INFO -- #3895421032 Features 14 0 17 - - -
TrigSignatureMoniMT INFO HLT_mu6_mu4_L12MU4 #1713982776
TrigSignatureMoniMT INFO -- #1713982776 Events 4 4 4 4 4 4 - - 4
-TrigSignatureMoniMT INFO -- #1713982776 Features 8 8 12 10 - -
+TrigSignatureMoniMT INFO -- #1713982776 Features 8 8 12 18 - -
TrigSignatureMoniMT INFO HLT_mu6_mu6noL1_L1MU6 #451489897
TrigSignatureMoniMT INFO -- #451489897 Events 10 10 10 10 10 10 6 4 4
-TrigSignatureMoniMT INFO -- #451489897 Features 14 13 16 15 9 7
+TrigSignatureMoniMT INFO -- #451489897 Features 14 13 16 21 9 7
TrigSignatureMoniMT INFO HLT_mu6fast_L1MU6 #3518031697
TrigSignatureMoniMT INFO -- #3518031697 Events 10 10 10 - - - - - 10
TrigSignatureMoniMT INFO -- #3518031697 Features 14 - - - - -
@@ -390,7 +390,7 @@ TrigSignatureMoniMT INFO -- #761101109 Events
TrigSignatureMoniMT INFO -- #761101109 Features 10 0 0 - - -
TrigSignatureMoniMT INFO HLT_mu8_L1MU6 #1467711434
TrigSignatureMoniMT INFO -- #1467711434 Events 10 10 10 10 10 10 - - 10
-TrigSignatureMoniMT INFO -- #1467711434 Features 14 13 15 15 - -
+TrigSignatureMoniMT INFO -- #1467711434 Features 14 13 15 19 - -
TrigSignatureMoniMT INFO HLT_noalg_L1EM10VH #314199913
TrigSignatureMoniMT INFO -- #314199913 Events 11 11 - - - - - - 11
TrigSignatureMoniMT INFO -- #314199913 Features - - - - - -
diff --git a/Trigger/TriggerCommon/TriggerMenuMT/python/HLTMenuConfig/Muon/MuonSequenceSetup.py b/Trigger/TriggerCommon/TriggerMenuMT/python/HLTMenuConfig/Muon/MuonSequenceSetup.py
index 1d49eeb29e5e2fee4d960bb17a0244c9a3435b29..b2b522ddb746bcf6f495e5c250c63ec9ff885d66 100644
--- a/Trigger/TriggerCommon/TriggerMenuMT/python/HLTMenuConfig/Muon/MuonSequenceSetup.py
+++ b/Trigger/TriggerCommon/TriggerMenuMT/python/HLTMenuConfig/Muon/MuonSequenceSetup.py
@@ -269,6 +269,7 @@ def muEFCBAlgSequence(ConfigFlags):
#
efcbViewsMaker.RequireParentView = True
efcbViewsMaker.ViewFallThrough = True
+ efcbViewsMaker.mergeUsingFeature = True
#outside-in reco sequence
muEFCBRecoSequence, sequenceOutCB = muEFCBRecoSequence( efcbViewsMaker.InViewRoIs, "RoI" )