update docs section

Signed-off-by: Nikolaos Pringouris <nprigour@gmail.com>

docs/user/en/reference/Layer Menu.rst

@@ -1,59 +1,66 @@
-Layer Menu
-##########
-
-The Layer Menu is used to control the content displayed in the Map Editor. Many of the actions
-available in the Layer menu apply to the selected Layer as shown in the Layer view.
-
-.. figure:: /images/layer_menu/LayerMenu.png
-   :align: center
-   :alt: 
-
-Add
----
-
-Opens the :doc:`Add Data wizard` to add additional layers to the current map.
-
-Create
-------
-
-Opens the Create Data wizard to create custom layers for the current map.
-
-Map Graphics
-------------
-
-Several map graphics can be directly added to your Map from the Layer menu:
-
-Unable to render {children} Page not found: Map Graphic page
-
-Other ...
----------
-
-Open the **Add Graphic to Map** dialog; allowing access to the complete list of available map
-decorations.
-
-.. figure:: /images/layer_menu/AddGraphic.png
-   :align: center
-   :alt: 
-
-Layer Operations
-----------------
-
-Operations that are applicable to the current layer are listed here.
-
-Additional operations are available from :menuselection:`File --> All Operations`
-
-Change Style
-~~~~~~~~~~~~
-
-Opens the :doc:`Style Editor dialog` for the current layer.
-
-Layer Properties
-----------------
-
-Opens the Property Dialog for the selected layer.
-
-**Related reference**
-
-:doc:`Layers view`
-
-
+Layer Menu
+##########
+
+The Layer Menu is used to control the content displayed in the Map Editor. Many of the actions
+available in the Layer menu apply to the selected Layer as shown in the Layer view.
+
+.. figure:: /images/layer_menu/LayerMenu.png
+   :align: center
+   :alt: 
+
+Add
+---
+
+Opens the :doc:`Add Data wizard` to add additional layers to the current map.
+
+Create
+------
+
+Opens the **Create Layer Dialog** to create custom layers for the current map.
+
+.. figure:: /images/layer_menu/CreateLayer.png
+   :align: center
+   :alt: 
+
+The dialog provides the ability to specify attribute fields for the layer. Restrictions
+related to the allowed length of the attribute value and whether null is allowed can also be specified       
+
+Map Graphics
+------------
+
+Several map graphics can be directly added to your Map from the Layer menu:
+
+Unable to render {children} Page not found: Map Graphic page
+
+Other ...
+---------
+
+Open the **Add Graphic to Map** dialog; allowing access to the complete list of available map
+decorations.
+
+.. figure:: /images/layer_menu/AddGraphic.png
+   :align: center
+   :alt: 
+
+Layer Operations
+----------------
+
+Operations that are applicable to the current layer are listed here.
+
+Additional operations are available from :menuselection:`File --> All Operations`
+
+Change Style
+~~~~~~~~~~~~
+
+Opens the :doc:`Style Editor dialog` for the current layer.
+
+Layer Properties
+----------------
+
+Opens the Property Dialog for the selected layer.
+
+**Related reference**
+
+:doc:`Layers view`
+
+