diff --git a/cadCAD/configuration/utils/__init__.py b/cadCAD/configuration/utils/__init__.py
index d0d9aec..1ef09f3 100644
--- a/cadCAD/configuration/utils/__init__.py
+++ b/cadCAD/configuration/utils/__init__.py
@@ -6,7 +6,7 @@ import pandas as pd
 
 # Temporary
 from cadCAD.configuration.utils.depreciationHandler import sanitize_partial_state_updates
-from cadCAD.utils import dict_filter, contains_type
+from cadCAD.utils import dict_filter, contains_type, flatten_tabulated_dict, tabulate_dict
 
 
 # ToDo: Fix - Returns empty when partial_state_update is missing in Configuration
@@ -122,4 +122,23 @@ def exo_update_per_ts(ep):
         else:
             return y, s[y]
 
-    return {es: ep_decorator(f, es) for es, f in ep.items()}
\ No newline at end of file
+    return {es: ep_decorator(f, es) for es, f in ep.items()}
+
+
+# Param Sweep enabling middleware
+def config_sim(d):
+    def process_variables(d):
+        return flatten_tabulated_dict(tabulate_dict(d))
+
+    if "M" in d:
+        return [
+            {
+                "N": d["N"],
+                "T": d["T"],
+                "M": M
+            }
+            for M in process_variables(d["M"])
+        ]
+    else:
+        d["M"] = [{}]
+        return d
\ No newline at end of file
diff --git a/cadCAD/configuration/utils/parameterSweep.py b/cadCAD/configuration/utils/parameterSweep.py
deleted file mode 100644
index a91e938..0000000
--- a/cadCAD/configuration/utils/parameterSweep.py
+++ /dev/null
@@ -1,20 +0,0 @@
-from cadCAD.utils import flatten_tabulated_dict, tabulate_dict
-
-
-def process_variables(d):
-    return flatten_tabulated_dict(tabulate_dict(d))
-
-
-def config_sim(d):
-    if "M" in d:
-        return [
-            {
-                "N": d["N"],
-                "T": d["T"],
-                "M": M
-            }
-            for M in process_variables(d["M"])
-        ]
-    else:
-        d["M"] = [{}]
-        return d
\ No newline at end of file
diff --git a/cadCAD/engine/simulation.py b/cadCAD/engine/simulation.py
index a62d1bb..9c3eeec 100644
--- a/cadCAD/engine/simulation.py
+++ b/cadCAD/engine/simulation.py
@@ -86,6 +86,7 @@ class Executor:
 
         self.apply_env_proc(env_processes, last_in_copy, last_in_copy['timestep'])
 
+        # ToDo: make 'substep' & 'timestep' reserve fields
         last_in_copy['substep'], last_in_copy['timestep'], last_in_copy['run'] = sub_step, time_step, run
 
         sL.append(last_in_copy)
diff --git a/simulations/validation/config1.py b/simulations/validation/config1.py
index 2c26f91..d2a8f2b 100644
--- a/simulations/validation/config1.py
+++ b/simulations/validation/config1.py
@@ -3,8 +3,7 @@ import numpy as np
 from datetime import timedelta
 
 from cadCAD.configuration import append_configs
-from cadCAD.configuration.utils import proc_trigger, bound_norm_random, ep_time_step
-from cadCAD.configuration.utils.parameterSweep import config_sim
+from cadCAD.configuration.utils import proc_trigger, bound_norm_random, ep_time_step, config_sim
 
 
 seeds = {
diff --git a/simulations/validation/config2.py b/simulations/validation/config2.py
index 0247c9b..80adcb5 100644
--- a/simulations/validation/config2.py
+++ b/simulations/validation/config2.py
@@ -3,8 +3,8 @@ import numpy as np
 from datetime import timedelta
 
 from cadCAD.configuration import append_configs
-from cadCAD.configuration.utils import proc_trigger, bound_norm_random, ep_time_step
-from cadCAD.configuration.utils.parameterSweep import config_sim
+from cadCAD.configuration.utils import proc_trigger, bound_norm_random, ep_time_step, config_sim
+
 
 seeds = {
     'z': np.random.RandomState(1),
diff --git a/simulations/validation/config4.py b/simulations/validation/config4.py
index 62f626f..164df26 100644
--- a/simulations/validation/config4.py
+++ b/simulations/validation/config4.py
@@ -3,8 +3,7 @@ import numpy as np
 from datetime import timedelta
 
 from cadCAD.configuration import append_configs
-from cadCAD.configuration.utils import proc_trigger, bound_norm_random, ep_time_step
-from cadCAD.configuration.utils.parameterSweep import config_sim
+from cadCAD.configuration.utils import proc_trigger, bound_norm_random, ep_time_step, config_sim
 
 
 seeds = {
diff --git a/simulations/validation/sweep_config.py b/simulations/validation/sweep_config.py
index 2350d95..e014b94 100644
--- a/simulations/validation/sweep_config.py
+++ b/simulations/validation/sweep_config.py
@@ -4,8 +4,7 @@ from datetime import timedelta
 import pprint
 
 from cadCAD.configuration import append_configs
-from cadCAD.configuration.utils import proc_trigger, ep_time_step
-from cadCAD.configuration.utils.parameterSweep import config_sim
+from cadCAD.configuration.utils import proc_trigger, ep_time_step, config_sim
 
 from typing import Dict, List