Update 4 2 vertical scalar field

4-2-vertical-scalar-field.md

@@ -30,20 +30,11 @@ On _Horizontal Plane_ menu category of _Menu Bar_, you can select one of the fol
 
 Each menu button has drop-down submenu, where you can set various options for each visualization style. For example, you can display character labels (including "H"/"L" for geopotential height) at the peak locations of the distribution.
 
-##### 4. Move the position of the cross-sectional plane.
-
-If your dataset includes wind flow datasets at multiple altitude, you can select a particular height level, or easily change to the next/previous height level.
-
-On _Horizontal Plane_ menu category of _Menu Bar_, you will find _Vertical Level_ drop-down control, where you can select height level among all the levels available in your dataset. You can also click _Move Up / Move Down_ button in order to increase / decrease the selected level.
-
-You can also change the height level of the horizontal plane using _Rendering Pane_ only.
-Double-click one of the corners of the plane on _Rendering Pane_ in order to reveal handles, and then just drag the handles to move the plane around.
-
-##### 5. Change the settings for color mapping (optional).
+##### 4. Change the settings for color mapping (optional).
 
 Double click the vertical _Color Bar_ on the right-hand side of _Rendering Pane_. A popup dialog named _'Setup Colormap and Limit Range'_ will show up, where you can change various options regarding the color mapping.
 
-##### 6. Control the size and location of the plane (optional).
+##### 5. Control the size and location of the plane (optional).
 
 You can control the size and location of the plane by using _Rendering Pane_ only. To do this, you need to :
   1. switch from _Globe_ mode to _Map_ mode,