How to organize my blogs posts in one main blog?

[Anthony]

Hello,

I use TypePad with a Pro Unlimited license, one of the reason of this
choice is that it allows me to manage multiple blogs.
What I want is having a main Blog (Done), then having multiple
"children" blogs which will populate my main blog.

- Is it an existing feature? I have not found anything about it yet.
- If yes, help is welcome :)

Thank you for answers,

Anthony