diff --git a/src/rbm/rbm.py b/src/rbm/rbm.py
index 7ab4dc2..48b21fa 100644
--- a/src/rbm/rbm.py
+++ b/src/rbm/rbm.py
@@ -9,14 +9,16 @@ if __name__ == "__main__":
 
 	for n, dim in enumerate(dims):
 		layer = Layer(f"Layer-{n}", dim, params)
-		stack.layer_add(layer)
+		stack.append(layer)
 
 	stack.init(std=0.1)
 	stack.state_save()
 
-	try:
-		stack.layer_add(Layer(f"Layer-{0}", (9,9), params))
-	except StackException as e:
-		print(f"Exception raised: [{e}] -> success!")
+	lay0 = stack.layers[0]
+	lay1 = stack.from_name("Layer-1")
+	lay2 = stack.from_index(2)
+	stack.remove(lay2)
+	stack.remove(lay1)
+	stack.remove(lay0)
 
 	print("Test: [passed]")
diff --git a/src/rbm/stack.py b/src/rbm/stack.py
index 318958e..0f562de 100644
--- a/src/rbm/stack.py
+++ b/src/rbm/stack.py
@@ -12,30 +12,36 @@ class Stack:
 	def __init__(self, stack_type: StackType, name: str):
 		self.stack_type = stack_type
 		self.name = name
-		self.layers: dict[str, Layer] = {}
+		self.layers: list[Layer] = []
 
-	def layer_add(self, layer: Layer):
-		if layer.name in self.layers.keys():
-			raise StackException(f"Layer \"{layer.name}\" already exists")
+	def num_layers(self):
+		return len(self.layers)
 
-		self.layers[layer.name] = layer
+	def append(self, layer: Layer):
+		self.layers.append(layer)
+		return self.num_layers()-1
 
-	def layer_remove(self, layer: Layer):
-		if layer.name not in self.layers.keys():
-			raise StackException(f"Layer \"{layer.name}\" does not exist")
+	def remove(self, layer: Layer):
+		for index, lay in enumerate(self.layers):
+			if lay == layer:
+				del(self.layers[index])
+				return
+		raise StackException(f"Layer \"{layer.name}\" does not exist")
 
-		del(self.layers[layer.name])
-
-	def layer_from_name(self, name: str) -> Layer:
-		result = None
-		if name in self.layers.keys():
-			result = self.layers[name]
+	def from_index(self, index : int) -> Layer:
+		result = self.layers[index]
 		return result
 
+	def from_name(self, name: str):
+		for layer in self.layers:
+			if layer.name in name:
+				return layer
+		return None
+
 	def init(self, std: float):
-		for k in self.layers.keys():
-			self.layers[k].init(std)
+		for layer in self.layers:
+			layer.init(std)
 
 	def state_save(self):
-		for k in self.layers.keys():
-			self.layers[k].save(f"{self.name}-{k}-state.npz")
+		for index, layer in enumerate(self.layers):
+			layer.save(f"{self.name}-{index}-state.npz")
diff --git a/src/rbm/stack_factory.py b/src/rbm/stack_factory.py
index c926609..97d1ea9 100644
--- a/src/rbm/stack_factory.py
+++ b/src/rbm/stack_factory.py
@@ -51,7 +51,7 @@ class StackFactory:
 			layer_obj = Layer(f"{layer_name}-{layer_id}", (num_visible_x*num_visible_y+num_context, num_hidden), params)
 
 			# Add layer to stack
-			obj.layer_add(layer_obj)
+			obj.append(layer_obj)
 
 		return obj
 
@@ -66,6 +66,6 @@ class StackFactory:
 
 
 if __name__ == "__main__":
-	stack = StackFactory.from_file("/home/jens/work/repos/Rbm/many.prj")
+	stack = StackFactory.from_file("/home/jens/work/repos/Rbm/test.prj")
 
 	print("Test: [passed]")