Unfortunately, it is not possible to add the form directly from the Design -> layout.
But here is a workaround:
1. First, copy the iframe code of a form from the form Setting -> Shorcode/Url tab
![](https://opencart.zendesk.com/attachments/token/BoT4LBIINwBTTZaAWLxO0P1tZ/?name=mceclip2.png)
2. Now add an `HTML Content` module from Extension -> Modules -> Html Content
![](https://opencart.zendesk.com/attachments/token/236OAumfV5b5LVDVPihZy4ntD/?name=mceclip1.png)
3. Please click the `Code View` icon to switch into `Code mode` and paste the copied iframe code
![](https://opencart.zendesk.com/attachments/token/iBvDBYEJpFmHYZa1QCVEigbXU/?name=mceclip3.png)
4. Now You can add this module from Design -> Layout
![](https://blog.opencartmart.com/wp-content/uploads/2021/03/Screenshot-2021-03-17-at-10.43.14-AM.png)