diff --git a/JFSphoto.py b/JFSphoto.py
index 98eaf0a..3ca3008 100644
--- a/JFSphoto.py
+++ b/JFSphoto.py
@@ -567,8 +567,14 @@ class Jfsphoto (object):
     def do_methods(self,panel):
         
         def cb(event):
-            print(tree.selection())
-        #     #panel.bcollect.invoke()
+            x = tree.selection()[0].split(' ')
+            nm = tree.item(x[0])["values"][1]
+            ## nm -> point
+            p = (nm - self.nm_left)*(1/self.nm_step)
+            print(f'nm {nm} point {p}')
+
+            #panel.bcollect.invoke()
+            #self.df['m1']=config.rxData16
     
         
 
@@ -595,6 +601,9 @@ class Jfsphoto (object):
         tree.heading("interval",text='intervall',anchor=tk.W) 
         tree.heading("last",text='last conc',anchor=tk.W) 
 
+        
+            
+
         einheiten = ['Mol','mmol','mymol']
         
         e1 = tk.StringVar()