# Setting up a custom scene
### How to set up a single object placement
This will guide you how to add a single object with easy manipulation (rotation/scaling/change position with shadow) into your project.
* **Step1** : Go to the EasyAR->Scenes folder & load the **SingleObjectSelection** scene.
* **Step 2** : Under the Canvas, a Panel has been added with singleObjectSelectionButton prefab. Select this prefab and in the inspector you would see an empty field in the Button component OnClick() event named as **None(Game Object)**.
* **Step 3**: Drag and drop your preferred created prefab (asmentionedin Section 6) from the EasyAR->Prefabs folder to this **None(Game Object)** area.
* **Step 4**: At the same time you can drag and drop the relevant materials of the prefab you created to the **Object Materials** in the **Prefab Material Handler** script.
* **Step 5**: If needed, you can change the sprite of the button prefab with a preferred relevant name
{% hint style="warning" %}
You can add any number of **singleObjectSelectionButton** prefabs as you need in this scene
{% endhint %}
* **Step6** : Now you are ready to build the scene with your custom prefab. Go to build setting and remove all the scenes under scenes in the **Build Settings**. Then set the first scene as your **SingleObjectSelection** scene (the scene which is created now) & ARSingleObject scene from the EasyAR->Scenes folder respectively.
* **Step 7**: Select your desired platform \&build.(Refer [Build the application](https://render-island.gitbook.io/easy-ar/fundamentals/build-the-application) section to change the build setting according to the platform you choose). Enjoy the Easy AR app.
### How to set up the Multiple Object Placement
In this section, we will guide you to how to create **ARMultipleObjectScene**.
* **Step 1** : Create a new scene and name it as “**ARMultipleObjectScene**”or any preferred name.
* **Step 2** : Delete Main camera from scene and Add AR Session, AR Session Origin from right click on the hierarchy and goto XR then select AR Session and AR Session Origin.
* **Step 3** : Select AR Session Origin & go to inspector. Add **MultipleObjectPlacement** script from EasyAR->Scripts folder. Also add **ARPlaneManager** component to AR Session Origin gameobject.
* **Step 4** : For a pointer indicator you can add the **pointer prefab** from the EasyAR->Prefabs folder. For Canvas you need to create a new canvas in game hierarchy and drag & drop in to the **Canvas** game object in Multiple Object Placement component.
**Step 5** : Also you need to add **AR Environment Probe Manager** component to **AR Session Origin** gameobject. For debug prefab drag and drop **AREnvironmentProbe** prefab from EasyAR->Prefabs folder.
* **Step 6 :** Select **AR Camera** under AR Session Origin gameobject & Change the Tag of the AR Camera as Main Camera
* **Step 7** : Add **ARSceneHandler** prefab from EasyAR->Prefabs folder to hierarchy.
* **Step8** : If you don’t need a back button you can hide it.
* Select back button from hierarchy.
* Untick the game object from the inspector.
* **Step 9** : In hierarchy go to newly created Canvas & Add new panel. Add **prefabChoosingButton** prefab from EasyAR->Prefabs->Buttons as a child object in the panel.
* **Step 10**: This one **PrefabChoosingButton** prefab is responsible for showing one AR object. You can add multiple PrefabChoosingButton prefabs as you need as a child object of the panel. Click PrefabChoosingButton & go to the inspector.
* **Step 11** : Under the **Onclick** function it has already added Settings gameobject. Remove it & Add new -> drag & drop **AR Session Origin** game object from Hierarchy.
* **Step 12**: Select MultipleObjectPlacement script & spawnObject method. You can drag & drop the game object prefab that you need to spawn here. Same time you can add a number of prefab materials & add materials to list in Prefab Material Handler Script.
{% hint style="warning" %} Make sure when you create a Spawning object prefab should follow the same steps in steps followed at single object placement developed. (Refer step 7-10 in section [Single Object Placement](https://render-island.gitbook.io/easy-ar/demos/single-object-placement))
{% endhint %}
* **Step 13** : Navigate to Canvas again in hierarchy. Add a notification panel as a child of canvas. You can find the notification panel prefab from the EasyAR->Prefabs folder. This panel is responsible for showing error messages if a user tries to place a vertical placement object in Horizontal planes or horizontal placement objects placed in a vertical plane.
* **Step 14** : Yes you are reaching to the final step. Go to the **build setting** & choose your preferred platform & build. (Add the scene to build settings if the scene is not in build setting)
{% hint style="warning" %} Things you need to consider before building the project.
* Make sure **AR camera** tag name set as **Main camera**
* Make sure you add the **notification panel** & tag name is set as
**NotificationPanel.**
* Make sure all spawning objects prefabs include relevant gameobjects discussed in step 7-10 in section [Single Object Placement](https://render-island.gitbook.io/easy-ar/demos/single-object-placement).
* Make sure all spawning objects include colliders
{% endhint %}