Update 4 3 horizontal vector field

4-3-horizontal-vector-field.md

@@ -12,7 +12,7 @@ Open your data file(s), using buttons on the _Home_ menu category of _Menu Bar_.
 
 In order to visualize the distribution of the variable on a layer, you can either
 
-* click the _Add Vector Plane_ button on _Layer_ menu category, select variable/area/level etc, and then click "OK", or 
+* click the _Add Vector Plane_ button on _Layer_ menu category, select options, and then click "OK", or 
 * right-click one of u/v components of wind on the _Variables Pane_, select _'Add Vector Plane'_. 
 
 _Rendering Pane_ will immediately display the vector field of wind, and a new layer will be added to the _Layers Pane_. By default, wind flow will be shown using wind vectors (arrows) at each grid points.