Index: doc/wflow_usage.rst
===================================================================
diff -u -re87d7796f64996fb91a9c4c74fc9c7d211631264 -r0e47e71394cabd13c4e41ac4873456b1d7b18698
--- doc/wflow_usage.rst	(.../wflow_usage.rst)	(revision e87d7796f64996fb91a9c4c74fc9c7d211631264)
+++ doc/wflow_usage.rst	(.../wflow_usage.rst)	(revision 0e47e71394cabd13c4e41ac4873456b1d7b18698)
@@ -146,11 +146,9 @@
         The above example uses column 1, 4 and 13
         Note that this also sets the order in which the updating takes place! In
         general specify downstream gauges first.
-    -P: set parameter multiply dictionary (e.g: -P 'self.FirstZoneDepth' : 1.2
-        to increase self.FirstZoneDepth by 20\%, multiply with 1.2)
-    -p: set input parameter (dynamic, e.g. precip) multiply dictionary 
-        (e.g: -p 'Precipitation' : 1.2 to increase Precipitation 
-        by 20%, multiply with 1.2)    
+    -P: set parameter change string (e.g: -P 'self.FC = self.FC * 1.6') for non-dynamic variables
+    -p: set parameter change string (e.g: -P 'self.Precipitation = self.Precipitation * 1.11') for
+        dynamic variables
     -v: set verbosity level
 
 wflow\_sbm\|hbv.ini file