[cdn_swordfish@hotmail.com]

wordpress multi-user, and users have opened in various blogs BuddyPress How can I sign up?
Select a blog that will record only
For example: autos.example.com / register
a member of that blog will only
Not a main blog

[lorenzo]

i’m interested in finding out about possible options. i believe that your issue could be solved using the WPMU Default User Role plugin. this allows you to assign a default blog (could be any id) for new registrations, but for example you cant seem to be able to go in a blog and register for the specific blog only, you get a ‘site registration’ instead

[cdn_swordfish@hotmail.com]

okay,very good psycolor but
http://autos.example.com a user is registered, but the main blog
How can we prevent that is a sign http://example.com?

[cdn_swordfish@hotmail.com]

main blog: http://example.com (not register)
sub-blog: http://auto.example.com (register)

get off the main blog entries

just let the user choose and write the blog could become a member.
Enter the not main blog and other blogs

[Andrea Rennick]

Get this plugin:

https://wordpress.org/extend/plugins/add-users-sidebar-widget/

[cdn_swordfish@hotmail.com]

Hi Andrea my site wordpress mu

Close to the main blog register form?
let users simply register their chosen sub-blogs.
A blog a member of the user to register are other blogs

Example: http://www.expamle.com / register (note the register form) (redirect 404.php)
sub-blog: autos.example.com / register
members should not enter the other blogs this blog