How to modify the default questionnaire template to show [Section Presentation] as [Stack Regions]?

Summary:

Hello Experts,

We created a new version of default [Project Feedback] template for Subscriber [Volunteering]. The default template has [Section Presentation] as [No Sections], however we're unable to modify this field to [Stack Regions] as there is no [Save and Close] option available while modifying the template.

Please advise.

Thanks

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