diff --git a/more_math/ClipMathNode.py b/more_math/ClipMathNode.py
index a1a4245..3181d4d 100644
--- a/more_math/ClipMathNode.py
+++ b/more_math/ClipMathNode.py
@@ -6,6 +6,7 @@ from .Parser.MathExprParser import MathExprParser
 import re
 from .Stack import MrmthStack
 import copy
+import comfy.utils
 
 
 
@@ -95,12 +96,11 @@ class CLIPMathNode(io.ComfyNode):
         # Call autogrow patch calculation
         from .modelLikeCommon import calculate_patches_autogrow
 
-        # Populate aliases map for backward compatibility in expressions (users might still use a/b/c/d/w/x/y/z)
-        # a=V0, b=V1, etc created by us or expected by user?
-        # The prompt says aliases are supported in check_lazy_status. Variables map in helper handles logic.
+        layer_count = V.get("V0").model.state_dict().__len__() if hasattr(V.get("V0"), "model") and hasattr(V.get("V0").model, "state_dict") else 0
+        pbar = comfy.utils.ProgressBar(layer_count)
         aliases = {"a": "V0", "b": "V1", "c": "V2", "d": "V3", "w": "F0", "x": "F1", "y": "F2", "z": "F3"}
 
-        patches = calculate_patches_autogrow(Expression, V=patchers_V, F=F, mapping=aliases,stack=stack)
+        patches = calculate_patches_autogrow(Expression, V=patchers_V, F=F,pbar=pbar, mapping=aliases,stack=stack)
 
         out_clip = a.clone()
         if patches:
diff --git a/more_math/ModelMathNode.py b/more_math/ModelMathNode.py
index fa42e8a..3e42a70 100644
--- a/more_math/ModelMathNode.py
+++ b/more_math/ModelMathNode.py
@@ -6,6 +6,9 @@ from .Parser.MathExprParser import MathExprParser
 import re
 from .Stack import MrmthStack
 import copy
+import comfy.utils
+from .modelLikeCommon import calculate_patches_autogrow
+
 
 class ModelMathNode(io.ComfyNode):
     """
@@ -88,12 +91,13 @@ class ModelMathNode(io.ComfyNode):
         if a is None:
             raise ValueError("At least one input model is required.")
 
+        layer_count = V.get("V0").model.state_dict().__len__() if hasattr(V.get("V0"), "model") and hasattr(V.get("V0").model, "state_dict") else 0
+        pbar = comfy.utils.ProgressBar(layer_count)
 
-        from .modelLikeCommon import calculate_patches_autogrow
 
 
         aliases = {"a": "V0", "b": "V1", "c": "V2", "d": "V3", "w": "F0", "x": "F1", "y": "F2", "z": "F3"}
-        patches = calculate_patches_autogrow(Expression, V=V, F=F, mapping=aliases,stack=stack)
+        patches = calculate_patches_autogrow(Expression, V=V, F=F,pbar=pbar, mapping=aliases,stack=stack)
 
         out_model = a.clone()
         if patches:
diff --git a/more_math/VaeMathNode.py b/more_math/VaeMathNode.py
index eb2d158..41e3ee6 100644
--- a/more_math/VaeMathNode.py
+++ b/more_math/VaeMathNode.py
@@ -7,6 +7,7 @@ from .Parser.MathExprLexer import MathExprLexer
 from .Parser.MathExprParser import MathExprParser
 import re
 from .Stack import MrmthStack
+import comfy.utils
 
 class VAEMathNode(io.ComfyNode):
     """
@@ -96,6 +97,8 @@ class VAEMathNode(io.ComfyNode):
         # Calculate patches using the patchers (weights are in patcher.model.state_dict)
         from .modelLikeCommon import calculate_patches_autogrow
         aliases = {"a": "V0", "b": "V1", "c": "V2", "d": "V3", "w": "F0", "x": "F1", "y": "F2", "z": "F3"}
+        layer_count = V.get("V0").model.state_dict().__len__() if hasattr(V.get("V0"), "model") and hasattr(V.get("V0").model, "state_dict") else 0
+        pbar = comfy.utils.ProgressBar(layer_count)
         patches = calculate_patches_autogrow(Expression, V=patchers_V, F=F, mapping=aliases,stack=stack)
 
         # VAE does not have a clone method, so we shallow copy and clone the patcher
diff --git a/more_math/modelLikeCommon.py b/more_math/modelLikeCommon.py
index c134643..78c13c8 100644
--- a/more_math/modelLikeCommon.py
+++ b/more_math/modelLikeCommon.py
@@ -1,13 +1,14 @@
 from .helper_functions import generate_dim_variables, parse_expr, as_tensor, get_v_variable, get_f_variable
 from .Parser.UnifiedMathVisitor import UnifiedMathVisitor
 import torch
+import comfy.utils
 
 
 def calculate_patches(Model, a, b=None, c=None, d=None, w=0.0, x=0.0, y=0.0, z=0.0):
     """Legacy calculate_patches for backward compatibility."""
     return calculate_patches_autogrow(Model, V={"V0": a, "V1": b, "V2": c, "V3": d}, F={"F0": w, "F1": x, "F2": y, "F3": z}, mapping={"a": "V0", "b": "V1", "c": "V2", "d": "V3", "w": "F0", "x": "F1", "y": "F2", "z": "F3"})
 
-def calculate_patches_autogrow(Expr, V, F, mapping=None,stack = []):
+def calculate_patches_autogrow(Expr, V, F,pbar, mapping=None,stack = []):
     """
     Calculate patches for model-like objects (Model, VAE, CLIP) using Autogrow inputs.
     Iterates over the UNION of keys from all input models to support merging disjoint architectures/patches.
@@ -53,6 +54,9 @@ def calculate_patches_autogrow(Expr, V, F, mapping=None,stack = []):
 
     # Progress bar if possible (comfy.utils.ProgressBar might assume unthreaded?)
     # Just skip for utility or use if substantial.
+    all_keys_list = list(all_keys)
+    layer_count = len(all_keys_list)
+    for layer_idx, key in enumerate(all_keys_list):
 
     for key in all_keys:
         variables = {}
@@ -66,6 +70,11 @@ def calculate_patches_autogrow(Expr, V, F, mapping=None,stack = []):
             if target in F:
                 variables[alias] = F[target] if F[target] is not None else 0.0
 
+        variables["L"] = float(layer_idx)
+        variables["layer"] = float(layer_idx)
+        variables["LC"] = float(layer_count)
+        variables["layer_count"] = float(layer_count)
+
         # Inject weights for this key from V models
         valid_key = False
         ref_tensor = None
@@ -130,5 +139,6 @@ def calculate_patches_autogrow(Expr, V, F, mapping=None,stack = []):
         if not torch.all(diff == 0):
             patches[key] = (diff,)
 
+        pbar.update(1)
 
     return patches