By default, the Visible property is True, so the layer is visible. The Visible property shows or hides a specific layer (visible). Use the DefaultLayer(exDefLayerVisible) property to specify the default value for the Visible property,  before adding any layer.  The Position property specifies the position of the layer, in the layers collection. The Selectable property returns or sets a value that indicates whether the layer is selectable. The LayerFromPoint property retrieves the layer from point that's visible and selectable. The OnDrag property indicates the action to be performed when the user drags the layer ( dragable ). The ShowLayers property indicates the only layers to be shown on the control.

The following properties can be used to access Layer objects in the control:

• Item property, gives the Layer object based on its index / key. The Count property specifies the number of layers within the control
• VisibleItem property, gives the visible layer based on its position. The VisibleCount property indicates the number of visible layers within the control. The ShowLayers property indicates the only layers to be shown on the control.