How To Integrate New Blog Templates With a Custom Registration Form


I want to create a custom registration form for my network. I still want to use the New Blog Template plugin. I have seen that the link used for the blog templates is

I would like to use that "blog_template=value" but I am not sure where should that value be directed for the integration to work properly.

I would appreciate it if you could please guide in the right direction here :wink:

Thank you!