diff --git a/ext/pvcombiadjustable.py b/ext/pvcombiadjustable.py
index ddb4261..6a7da6c 100644
--- a/ext/pvcombiadjustable.py
+++ b/ext/pvcombiadjustable.py
@@ -1,40 +1,30 @@
-from slic.core.adjustable import Adjustable
+from slic.core.adjustable import Adjustable,DummyAdjustable,PVAdjustable
+import numpy as np
 
 class PVCombiAdjustable(Adjustable):
     def __init__(self, adjustables,values):
         self.adjustables = adjustables
         self.values = values  # array or indiviual array values
-        self.process_time = np.max(np.array([adj.process_time for adj in self.adjustables]))
-
-    def set_target_value(self, value):        
-        intval = int(value)
-        if intval < 0 or intval >= len(self.values[0]):
-            tname = typename(self)
-            raise AdjustableError(f"Outside of array bounds for {tname} \"{self.name}\" to set target values")
-        
-        for adj in self.adjustables:
-            adj._wait_for_ready()
-
+       
+               
+    def set_target_value(self, value):
+        print('##### Setvalue:',value)
+        # check if values are in range
         for i,adj in enumerate(self.adjustables):
-            val=self.values[i,intval]
-            ret = adj.pvs.setvalue.put(val, wait=True, use_complete=True) # use_complete=True enables status in PV.put_complete
-            error = handle_put_return_value(ret)
-            if error is not None:
-                tname = typename(adj)
-                raise AdjustableError(f"changing {tname} \"{adj.name}\" to {val} {adj.units} failed due to {error}")
-
-        sleep(self.process_time)
-        
-        for adj in self.adjustables:
-            adj._wait_for_done()
+            idx = int(value[i])
+            print('### Index',i, idx)
+            val=self.values[i][idx]
+            print('### Setting',adj.name,'to',val)
+            adj.set_target_value(val)
        
     @property
     def units(self):
-        [adj.units() for adj in self.adjustables]
+         return ['m' for adj in self.adjustables]        
+#        return [adj.units() for adj in self.adjustables if adj is not None]
 
         
     def get_current_value(self, readback=True):
-        return [adj.get_current_value(readback) for adj in self.adjustables]
+        return [adj.get_current_value() for adj in self.adjustables]  # this is different for dummy elements
    
     def stop(self):
         for adj in self.adjustbale: