Customized Error Page in Okta Provider

I am trying to add a customzied error page to my custom domain. I am using the Okta Terraform provider. However, I don’t see any documentation for adding a customized error page. I can see that there exists an endpoint in Okta to do this, and I am also able to customize the error page in the admin console.

If this feature isn’t available, are there any plans to add it to the provider? Thank you!