diff --git a/kmcos/__init__.py b/kmcos/__init__.py
index ab27cbed3188af78a9f4ff26098736dc7f5b8b2e..8906ac5d5a852b34018c3cfd9042bdd8eb226c96 100644
--- a/kmcos/__init__.py
+++ b/kmcos/__init__.py
@@ -56,7 +56,7 @@ from __future__ import print_function
 #import kmcos.io
 
 
-__version__ = "0.0.63"
+__version__ = "0.0.64"
 VERSION = __version__
 
 def evaluate_param_expression(param, parameters={}):
diff --git a/kmcos/run/__init__.py b/kmcos/run/__init__.py
index 091d07f5dbf4554b862c382ee60c3e150ba4b7b9..509f7893d4364197c5b3216c25041998415bef1d 100644
--- a/kmcos/run/__init__.py
+++ b/kmcos/run/__init__.py
@@ -937,10 +937,10 @@ class KMC_Model(Process):
         ase = import_ase()
         ase.visualize.view(self.get_atoms(tag=tag), *args, **kwargs)
 
-    def view(self):
+    def view(self, scaleA = None):
         """Start current model in live view mode."""
         from kmcos import view
-        view.main(self)
+        view.main(self, scaleA = scaleA)
 
     def get_atoms(self, geometry=True, tag=None, reset_time_overrun=False):
         """Return an ASE Atoms object with additional
diff --git a/kmcos/view.py b/kmcos/view.py
index 9c175ec0b07cbfe4d65517a996249dc5bffbbb27..2f10523ad95e2aa40263db8bd358e322b87fd0d8 100644
--- a/kmcos/view.py
+++ b/kmcos/view.py
@@ -165,7 +165,7 @@ class KMC_ViewBox(threading.Thread, View, Status, FakeUI):
     """
 
     def __init__(self, queue, signal_queue, vbox, window,
-                rotations='', show_unit_cell=True, show_bonds=False):
+                rotations='', scaleA = None, show_unit_cell=True, show_bonds=False):
 
         threading.Thread.__init__(self)
         self.image_queue = queue
@@ -178,6 +178,7 @@ class KMC_ViewBox(threading.Thread, View, Status, FakeUI):
         self.images.initialize([ase.atoms.Atoms()])
         self.killed = False
         self.paused = False
+        self.scaleA = scaleA
 
         self.vbox = vbox
         self.window = window
@@ -196,7 +197,11 @@ class KMC_ViewBox(threading.Thread, View, Status, FakeUI):
             self.live_plot = False
 
         #self.drawing_area.realize()
-        self.scaleA = 3.0
+        if type(self.scaleA) == type(None):
+            self.scaleA = 3.0
+        else:
+            pass
+
         self.center = np.array([8, 8, 8])
         #self.set_colors()
         #self.set_coordinates(0)
@@ -398,15 +403,19 @@ class KMC_Viewer():
     and view a kMC model.
     """
 
-    def __init__(self, model=None, steps_per_frame=50000):
+    def __init__(self, model=None, scaleA = None, steps_per_frame=50000):
         if sys.version_info.major == 3:
             self.window = gtk.Window()
         else:
             self.window = gtk.Window(gtk.WINDOW_TOPLEVEL)
             self.window.set_position(gtk.WIN_POS_CENTER)
+
+        
             
         self.window.connect('delete-event', self.exit)
 
+        self.scaleA = scaleA
+
         self.vbox = gtk.VBox()
         self.window.add(self.vbox)
         queue = multiprocessing.Queue(maxsize=3)
@@ -422,8 +431,8 @@ class KMC_Viewer():
             self.model.image_queue = queue
             self.model.parameter_queue = self.parameter_queue
             self.model.signal_queue = self.signal_queue
-        self.viewbox = KMC_ViewBox(queue, self.signal_queue,
-                                   self.vbox, self.window)
+        self.viewbox = KMC_ViewBox(queue = queue, signal_queue = self.signal_queue,
+                                 vbox = self.vbox, window = self.window, scaleA = self.scaleA)
 
         adjustable_params = [param for param in settings.parameters
                              if settings.parameters[param]['adjustable']]
@@ -467,7 +476,7 @@ class KMC_Viewer():
         return True
 
 
-def main(model=None, steps_per_frame=50000):
+def main(model=None, scaleA = None, steps_per_frame=50000):
     """The entry point for the kmcos viewer application. In order to
     run and view a model the corresponding kmc_settings.py and
     kmc_model.(so/pyd) must be in the current import path, e.g. ::
@@ -477,9 +486,8 @@ def main(model=None, steps_per_frame=50000):
         from kmcos.view import main
         main() # launch viewer
     """
-
     GObject.threads_init()
-    viewer = KMC_Viewer(model, steps_per_frame=steps_per_frame)
+    viewer = KMC_Viewer(model = model, scaleA = scaleA, steps_per_frame=steps_per_frame)
     viewer.model.start()
     viewer.viewbox.start()
     gtk.main()