Template with child page

Hi,

I suggest this feature which is eagerly awaited in our team:

User story:
When a new project starts, we create a page dedicated to the project containing sub-pages.

Example:

• Project XXXX
  • Design
  • Development
  • Test

Problem:
Currently the templates function allow to create only one page

Suggestion:

So we would like to be able to create at once the main page and its child pages.

Who is also interested in this feature ?

Thx