# Mast Light Objects {{% tagged "internal" %}} // CALLOUT HERE This object is available when the Scenery Editor is in [World Hub Mode](../../the-scenery-editor#worldhub). {{% /tagged %}} An **Mast Light** object is an object element used to add some kind of standing laight source into your airport, and it can be selected from the [Objects](../../menus/the-view-menu#objects) window: {{< image-center src="images/2_DevMode/scenery_editor/Objects/mastlights/mastlight_obj_1_object.png" alt="The Mast Light Object In The Objects Window" >}} Once you have chosen the mast light object, you can click the {{< button "Add" />}} to add it to the scene then position it where required using the [Gizmo](../../menus/the-view-menu#gizmo). ### Properties The **Properties** window for a Light Mast object looks like this: {{< image-center src="images/2_DevMode/scenery_editor/Objects/mastlights/lightmast_obj_2_props.png" alt="The Properties Window For A Light Mast Object" >}} - ##### Display Name This is the name of the element as defined from its type and the **Name** given to it. - ##### Model GUID This shows the unique {{< glossterm >}}guid{{< /glossterm >}} for the model being used as the mast light. If this is required for use in code or any other object, you can use the {{< button "Copy..." />}} button to copy it to the clipboard. - ##### Change Model The {{< button "Change Model" />}} button will open the model selector window, where you can see all the different models available for use in the simulation: {{< image-center src="images/2_DevMode/scenery_editor/Objects/mastlights/lightmast_obj_2_props.png" alt="The Properties Window For A Light Mast Object" >}} On the left of this window you can see the models that are available. These are displayed as thumbnails by default, but you can covert this into a list by *unchecking* the **Thumbnails** checkbox at the top. The thumbnails themselves can be made larger or smaller using the {{< button "+" />}} and {{< button "-" />}} buttons beside the checkbox. The list of models can be filtered using the input box at the top, along with the *package* list and *tags* to the right. Once you have selected a model, you can click the {{< button "Use" />}} button at the bottom to assign it to the object. {{< image-center src="images/2_DevMode/scenery_editor/Objects/mastlights/mastlight_obj_4_example.png" alt="An Example Of A Light Mast Object Placed In the Scene" >}}