Terraform Enterprise/Cloud Dynamic Credentials Configurable Session Duration

While trying out the Dynamic Credentials(Dynamic Credentials with the AWS Provider - Workspaces - Terraform Enterprise | Terraform | HashiCorp Developer) solution, I noticed that the session duration is always set to default value of 1 hour regardless of the max session duration setting on the IAM role. This poses limitations in cases where the session duration needs to be configurable. Is there a native way to achieve this using the documented way for dynamic credentials in TFC/TFE at workspace level itself ?