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Return instructions for creating interstitial placements
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# Interstitial Placement Creation Guide
**Source:** [Interstitials Configuration](https://tripledotstudios.atlassian.net/wiki/spaces/KB/pages/3705274372)
## 14.1 Creating a New Interstitial Placement

To create a new Interstitial Placement, follow these steps:
1. Navigate to the Interstitial Placements section
2. Click the green **[New]** button located in the upper right side of the screen
3. Assign a **unique name** to the placement
4. Create a **unique key** for the placement
5. Click **[Save]** to finalize the placement creation
## 14.2 Creating an Interstitial Placement Bank
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After creating individual placements, you can group them into a Placement Bank:
1. Click the green **[New]** button in the upper right
2. Assign a name to the placement bank
3. Under **Placements** section:
- Select a placement
- Click **[Add Placement]**
- Repeat for multiple placements
4. Configure **Interstitial Probability**:
- Use values between 0 and 1
- 0 = 0% probability
- 1 = 100% probability
- Example: 0.50 = 50% chance of ad display
5. Click **[Save]** to complete the Placement Bank configuration
### Probability Example
- 0.25 = 25% chance of ad
- 0.75 = 75% chance of ad
**Pro Tip:** If you accidentally delete a placement, you can use the 🔄 **Undo button** to restore it.