diff --git a/tknodesystem/__init__.py b/tknodesystem/__init__.py
index f7fa841..856477c 100644
--- a/tknodesystem/__init__.py
+++ b/tknodesystem/__init__.py
@@ -5,7 +5,7 @@
 License: MIT
 """
 
-__version__ = '0.2'
+__version__ = '0.4'
 
 from .node_types import NodeValue, NodeOperation, NodeCompile
 from .node_canvas import NodeCanvas
diff --git a/tknodesystem/node_args.py b/tknodesystem/node_args.py
index 90de238..f4be58d 100644
--- a/tknodesystem/node_args.py
+++ b/tknodesystem/node_args.py
@@ -29,7 +29,7 @@ def func_args(args):
                         'corner_radius': 25, 'border_width': 0, 'fg_color': '#37373D', 'text_color': 'white', 'font': ('', 10),
                         'highlightcolor': '#52d66c', 'hover': True, 'socket_color': 'green', 'socket_hover_color': 'grey50',
                         'x': None, 'y': None, 'multiside': False, 'output_socket_color': 'green', 'click_command': None,
-                        'socket_hover': True, 'num': None}
+                        'socket_hover': True, 'num': None, 'none_inputs': False}
 
         args.pop("canvas")
         args.pop("self")
diff --git a/tknodesystem/node_menu.py b/tknodesystem/node_menu.py
index c9a9da9..3e15594 100644
--- a/tknodesystem/node_menu.py
+++ b/tknodesystem/node_menu.py
@@ -159,9 +159,9 @@ def place_dropdown(self, x=None, y=None):
         
     def _iconify(self, x=None, y=None):
         self.focus_set()
-        self.search_entry.focus_set()
         self._deiconify()
         if self.focus_something: self.node[0].focus_set()
+        self.search_entry.focus_set()
         self.place_dropdown(x,y)
 
     def _attach_key_press(self, command):
diff --git a/tknodesystem/node_types.py b/tknodesystem/node_types.py
index e315c2b..8a003d0 100644
--- a/tknodesystem/node_types.py
+++ b/tknodesystem/node_types.py
@@ -138,7 +138,7 @@ def configure(self, **kwargs):
 class NodeOperation(Node):
     def __init__(self, canvas, width=100, height=None, inputs=2, border_color='white', text=None,
                  socket_radius=8, corner_radius=25, border_width=0, fg_color='#37373D', text_color='white', font=("",10),
-                 highlightcolor='#52d66c', hover=True, socket_color="green", socket_hover_color="grey50", x=0, y=0,
+                 highlightcolor='#52d66c', hover=True, socket_color="green", socket_hover_color="grey50", x=0, y=0, none_inputs=False,
                  multiside=False, command=None, output_socket_color="green", click_command=None, socket_hover=True, num=None):
 
         self.text = text
@@ -190,6 +190,7 @@ def __init__(self, canvas, width=100, height=None, inputs=2, border_color='white
         self.socket_colors = []
         self.connected_node = set()
         self.connected_node_first = None
+        self.none_values = none_inputs
         x_pos = x
         y_pos = y
             
@@ -224,6 +225,7 @@ def __init__(self, canvas, width=100, height=None, inputs=2, border_color='white
         self.cellinput5 = None
         self.celloutput = None
         self.socket_nums = []
+        self.values_args = []
         
         self.output_ = NodeSocket(canvas, radius=socket_radius, center=(width+(width/2),height),
                                   fg_color=output_socket_color, hover_color=socket_hover_color, socket_num=num[0] if num else None,
@@ -424,26 +426,26 @@ def update(self):
                      self.cellinput3,
                      self.cellinput4,
                      self.cellinput5]
-        values_args = []
+        self.values_args = []
         if self.command:
             for i in arguments[0:self.inputs]:
                 if i is None:
-                    self.output_.value = None
-                    break
+                    self.values_args.append(None)
                 else:
-                    self.output_.value = 1
-                    values_args.append(i.output_.value)
-                    
-            if self.output_.value:
-                for i in values_args:
+                    self.values_args.append(i.output_.value)
+            
+            if not self.none_values:
+                for i in self.values_args:
                     if i is None:
                         self.output_.value = None
                         break
                     else:
                         self.output_.value = 1
-                        
-                if self.output_.value:
-                    self.output_.value = self.command(*values_args[0:self.inputs])
+            else:
+                self.output_.value = 1
+                
+            if self.output_.value:
+                self.output_.value = self.command(*self.values_args[0:self.inputs])
         else:
             self.output_.value = None
 
@@ -455,6 +457,9 @@ def get(self):
         """ get the current value of node """
         return self.output_.value
     
+    def get_inputs(self):
+        return self.values_args
+    
     def destroy(self):
         if self.ID not in self.canvas.find_all(): return
         self.output_.value = None