Update 3 3 open layer

3-3-open-layer.md

@@ -4,7 +4,7 @@
 ##### Adding layers
 After opening data files, you can add layers to the 3D-image in the **Rendering Pane** as follows:
 
-1.  In *Menu Category*, choose *Layer* category.
+1.  In **Menu Bar**, choose *Layer* menu category.
 1.  In *Add Layer* panel, click the corresponding button with the layer that you want to add.
 
     ![](img/3-3-1-add-layer.png)
@@ -16,24 +16,24 @@ After opening data files, you can add layers to the 3D-image in the **Rendering
 
 
  
-After adding a layer, such as *Horizontal Plane*, **Rendering Pane** displays data of the selected variable on the layer, **Layers Pane** displays the layer name, and **Actions Pane** displays the *Add layer* action.
+After adding a layer, such as *Horizontal Plane*, **Rendering Pane** displays data of the selected variable on the layer, **Layers Pane** displays the layer name, and **Actions Pane** displays the *Add layer* action entry.
 
 ![](img/3-3-1-add-layer-result.png)
 
-In addition, the program generates one more category corresponding to the added layer in *Menu Category*, such as *Horizontal Plane* category. 
+In addition, the program generates one more menu category corresponding to the added layer in **Menu Bar**, such as *Horizontal Plane* menu category. 
 
 ![](img/3-3-1-add-category.png)
 
-This new category contains two panels. 
+This new menu category contains two panels. 
 
 *  *Grid Options* panel contains buttons used to set the properties of the layer grid data to extract from the numerical model data.
 *  *Style* panel contains buttons used to set the display properties of the added layer.
 
-Note that the name of the added category and its ribbon are displayed differently with different added layer. 
+Note that the name of the added menu category and its ribbon are displayed differently with different added layer. 
 
 
 ##### Viewing data
-To display data of another variable on the current layer, you can *select* that variable in the list (on the **Variables Pane**) and:
+To display data of another variable on the current layer, you can select that variable in the list (on the **Variables Pane**) and:
 
 *  double-click on that variable; or 
 *  click the first button on the control bar, then select *Show on Current Layer*; or
@@ -51,10 +51,9 @@ Each layer item in the list consists of *Show/Hide* checkbox, *Layer Name*, *Loc
 The *Layer Name* is created in the following format: %VARIABLE NAME% : %SECTION TYPE% - %VERTICAL SYSTEM%
 
 
-
 ##### Showing/Hiding layers
 
-*  You can show or hide a layer on the **Rendering Pane** by checking or unchecking the *Show/Hide* checkbox .
+*  You can show or hide a layer on the **Rendering Pane** by checking or unchecking the *Show/Hide* checkbox.
 
       ![](img/3-3-2-show-hide.png)
 
@@ -62,7 +61,7 @@ The *Layer Name* is created in the following format: %VARIABLE NAME% : %SECTION
 
       ![](img/3-3-2-show-hide-all.png)
 
-      You can also show or hide the layers by choosing *Layer* category in *Menu Category*. In *View* panel, click the *Show* button.
+      The alternative way is to choose *Layer* menu category in **Menu Bar**. In *View* panel, click the *Show* button.
 
 ##### Closing layers
 
@@ -74,7 +73,7 @@ The *Layer Name* is created in the following format: %VARIABLE NAME% : %SECTION
 
       ![](img/3-3-2-close-all.png)
 
-      You can also close the layers by choosing *Layer* category in *Menu Category*. In *View* panel, click the *Close* button.
+      The alternative way is to choose *Layer* menu category in **Menu Bar**. In *View* panel, click the *Close* button.
 
 
 ##### Arranging layers
@@ -87,7 +86,7 @@ The *Background Map* and *Borderlines Map* layers are always rendered first.
 
 When multiple layers are overlapped, the layer with the larger distance from the viewpoint lays under the layer that is closer to the viewpoint. The rendering order determines the transparency (alpha channel) effect.
 
-You can also arrange the layers by choosing *Layer* category in *Menu Category*. In *Layer Profile* panel, click the *Automatic Z-Order* button.
+The alternative way is to choose *Layer* menu category in **Menu Bar**. In *Layer Profile* panel, click the *Automatic Z-Order* button.
 
 ##### Saving/Opening layers
 
@@ -95,13 +94,13 @@ You can also arrange the layers by choosing *Layer* category in *Menu Category*.
 
       ![](img/3-3-2-save.png)
 
-      You can also save the layer list by choosing *Layer* category in *Menu Category*. In *Layer Profile* panel, click the *Save* button.
+      The alternative way is to choose *Layer* menu category in **Menu Bar**. In *Layer Profile* panel, click the *Save* button.
 
 *  You can load the saved layer list from the layer profile file by clicking *Open* button on the control bar.
 
       ![](img/3-3-2-open.png)
 
-      You can also load the saved layer list by choosing *Layer* category in *Menu Category*. In *Layer Profile* panel, click the *Open* button.
+      The alternative way is to choose *Layer* menu category in **Menu Bar**. In *Layer Profile* panel, click the *Open* button.
 
 ##### Right-click