diff --git a/Configuration/Applications/python/ConfigBuilder.py b/Configuration/Applications/python/ConfigBuilder.py
index 3ffc2d2cf626e..9862e90d937ce 100644
--- a/Configuration/Applications/python/ConfigBuilder.py
+++ b/Configuration/Applications/python/ConfigBuilder.py
@@ -1012,6 +1012,7 @@ def define_Configs(self):
         self.DIGIDefaultCFF="Configuration/StandardSequences/Digi_cff"
         self.DIGI2RAWDefaultCFF="Configuration/StandardSequences/DigiToRaw_cff"
         self.L1EMDefaultCFF='Configuration/StandardSequences/SimL1Emulator_cff'
+        self.L1P2GTDefaultCFF = 'Configuration/StandardSequences/SimPhase2L1GlobalTriggerEmulator_cff'
         self.L1MENUDefaultCFF="Configuration/StandardSequences/L1TriggerDefaultMenu_cff"
         self.HLTDefaultCFF="Configuration/StandardSequences/HLTtable_cff"
         self.RAW2DIGIDefaultCFF="Configuration/StandardSequences/RawToDigi_Data_cff"
@@ -1050,6 +1051,7 @@ def define_Configs(self):
         self.DIGI2RAWDefaultSeq='DigiToRaw'
         self.HLTDefaultSeq='GRun'
         self.L1DefaultSeq=None
+        self.L1P2GTDefaultSeq=None
         self.L1REPACKDefaultSeq='GT'
         self.HARVESTINGDefaultSeq=None
         self.ALCAHARVESTDefaultSeq=None
@@ -1572,6 +1574,40 @@ def prepare_REPACK(self, stepSpec = None):
         self.scheduleSequence(_repackSeq,'digi2repack_step')
         return
 
+    def loadPhase2GTMenu(self, menuFile: str):
+        import importlib
+        menuPath = f'L1Trigger.Configuration.Phase2GTMenus.{menuFile}'
+        menuModule = importlib.import_module(menuPath)
+        
+        theMenu = menuModule.menu
+        triggerPaths = [] #we get a list of paths in each of these files to schedule
+
+        for triggerPathFile in theMenu:
+            self.loadAndRemember(triggerPathFile) #this load and remember will set the algo variable of the algoblock later
+
+            triggerPathModule = importlib.import_module(triggerPathFile)
+            for objName in dir(triggerPathModule):
+                obj = getattr(triggerPathModule, objName)
+                objType = type(obj)
+                if objType == cms.Path:
+                    triggerPaths.append(objName)
+        
+        triggerScheduleList = [getattr(self.process, name) for name in triggerPaths] #get the actual paths to put in the schedule
+        self.schedule.extend(triggerScheduleList) #put them in the schedule for later
+    
+    # create the L1 GT step
+    # We abuse the stepSpec a bit as a way to specify a menu
+    def prepare_L1P2GT(self, stepSpec=None):
+        """ Run the GT emulation sequence on top of the L1 emulation step """
+        self.loadAndRemember(self.L1P2GTDefaultCFF)
+        self.scheduleSequence('l1tGTProducerSequence', 'Phase2L1GTProducer')
+        self.scheduleSequence('l1tGTAlgoBlockProducerSequence', 'Phase2L1GTAlgoBlockProducer')
+        if stepSpec == None:
+            defaultMenuFile = "prototype_2023_v1_0_0"
+            self.loadPhase2GTMenu(menuFile = defaultMenuFile)
+        else:
+            self.loadPhase2GTMenu(menuFile = stepSpec)
+
     def prepare_L1(self, stepSpec = None):
         """ Enrich the schedule with the L1 simulation step"""
         assert(stepSpec == None)
diff --git a/Configuration/StandardSequences/python/SimPhase2L1GlobalTriggerEmulator_cff.py b/Configuration/StandardSequences/python/SimPhase2L1GlobalTriggerEmulator_cff.py
new file mode 100644
index 0000000000000..99a845f6d627f
--- /dev/null
+++ b/Configuration/StandardSequences/python/SimPhase2L1GlobalTriggerEmulator_cff.py
@@ -0,0 +1,5 @@
+# Make the phase 2 GT book end configs available as standard sequences for the cmsDriver
+# Written by: Andrew Loeliger
+import FWCore.ParameterSet.Config as cms
+
+from L1Trigger.Configuration.SimPhase2L1GlobalTrigger_cff import *
\ No newline at end of file
diff --git a/L1Trigger/Configuration/python/Phase2GTMenus/SeedDefinitions/prototypeSeeds.py b/L1Trigger/Configuration/python/Phase2GTMenus/SeedDefinitions/prototypeSeeds.py
new file mode 100644
index 0000000000000..5dc0c060a7eb4
--- /dev/null
+++ b/L1Trigger/Configuration/python/Phase2GTMenus/SeedDefinitions/prototypeSeeds.py
@@ -0,0 +1,4 @@
+# Concatenate prototype menu seeds somewhere easy to handle
+from L1Trigger.Phase2L1GT.l1tGTMenu_hadr_metSeeds_cff import *
+
+from L1Trigger.Phase2L1GT.l1tGTMenu_lepSeeds_cff import *
\ No newline at end of file
diff --git a/L1Trigger/Configuration/python/Phase2GTMenus/prototype_2023_v1_0_0.py b/L1Trigger/Configuration/python/Phase2GTMenus/prototype_2023_v1_0_0.py
new file mode 100644
index 0000000000000..4fe219c5995ec
--- /dev/null
+++ b/L1Trigger/Configuration/python/Phase2GTMenus/prototype_2023_v1_0_0.py
@@ -0,0 +1,5 @@
+# The first prototype menu
+
+menu = [
+    'L1Trigger.Configuration.Phase2GTMenus.SeedDefinitions.prototypeSeeds'
+]
\ No newline at end of file
diff --git a/L1Trigger/Configuration/python/SimPhase2L1GlobalTrigger_cff.py b/L1Trigger/Configuration/python/SimPhase2L1GlobalTrigger_cff.py
new file mode 100644
index 0000000000000..1f68723008fcf
--- /dev/null
+++ b/L1Trigger/Configuration/python/SimPhase2L1GlobalTrigger_cff.py
@@ -0,0 +1,20 @@
+# Make Phase 2 Global Trigger "book end" configurations available as an L1 Configuration file
+# To be made available later in Configuration/StandardSequences.
+# It's a little circuitous, I admit, but seems correct to be available _everywhere_
+# Written by: Andrew Loeliger
+
+import FWCore.ParameterSet.Config as cms
+
+# Get the GT Producer/first of the "book end"s, responsible for GT inputs
+from L1Trigger.Phase2L1GT.l1tGTProducer_cff import l1tGTProducer
+
+l1tGTProducerSequence = cms.Sequence(
+    l1tGTProducer
+)
+
+# Get the Algo Block/second of the "book end"s, responsible for trigger results
+from L1Trigger.Phase2L1GT.l1tGTAlgoBlockProducer_cff import l1tGTAlgoBlockProducer
+
+l1tGTAlgoBlockProducerSequence = cms.Sequence(
+    l1tGTAlgoBlockProducer
+)
\ No newline at end of file