To upload the creative follow these steps:
- Go to the Creative Library tab and click on the ADD NEW CREATIVE button:
- Drag the creative to the drop area or add it from your computer, and then press the UPLOAD button:

- If required, add other creatives, or close the upload panel:

- You can also upload video creatives by going to the Videos tab, using the described steps above:

Then your creatives will be available for simple Banner, Native, and Video setup: