# Runtime Interaction

When you are in Play mode, target the BP\_Material actor and interact with it. A UI will appear, giving you two main options:

**1. Material Setup**

This view allows you to apply pre-defined materials from your library to the object.

* Select a **Material Slot** (e.g., 1, 2, 3...).
* Click on any of the material icons to apply it to the object.
* You can also adjust the tiling of the material's textures using the **Tiling Setup**.

<figure><img src="/files/yhsxaiRipcv86IB0Nf4R" alt=""><figcaption><p>Runtime Material Setup Interface</p></figcaption></figure>

**2. Color Picker**

This view allows you to apply a custom solid color to the object.

* Select a **Material Slot**.
* Use the color wheel and sliders to pick your desired color.
* Click **"OK"** to apply it.
* You can create powerful combinations, for example, setting Slot 1 to a wood material and Slot 2 to a custom blue color.

<figure><img src="/files/aO051VVK385vwwKXtEii" alt=""><figcaption><p>Runtime Color picker Interface</p></figcaption></figure>


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