how to create parent/child in cb?

is it possible to superuser (admin of website) or some user has a proper acl setup user connection?
for example clerk of company, set the list of foreman and worker of him?

You want moderators to setup the connections and not the user themselves? No, there's no functionality for that and no backend management of connections. I suppose you could put something together with a custom HTML form and CB Auto Actions though.

i can create simple html form and send to the php file and then insert to table of member but when i need to use cb auto action?and what type of auto action in your mind?
please more describe for solution.is my solution is right or is there any easier way in your mind?

You'd create a auto action with Triggers set to None then set the Type to Connection. Next you'd substitute in the POST values of the users you want to connect. These should be user ids. Your HTML form would then just submit to the auto action URL listed in your auto action under the Global tab. Example of how this action could progress a form as follows.

Global
Triggers: None
Type: Connection
User: User
Access: All Moderators
Action
Users: [cb:parse function="clean" method="int"][post_to][/cb:parse]
User: [cb:parse function="clean" method="int"][post_from][/cb:parse]
Parameters
Format Functions: Enabled

With the above example your HTML form would submit to the actions URL with 2 inputs. 1 to supply the user id who is sending the connection request (input name should be "from") and 1 to supply the user id who is receiving the connection request (input name should be "to"). I guess you could always bypass this step and use something like RS Forms and directly insert the connection into _comprofiler_members database as well.

hi kerileon and many thank you...
why we must use auto action? i can create form(in my case somthing such as Rs form) and insert directly in the database. what is benefit of useing cb auto action? are your mean is use auto action type connection for send an email to user requested?
must do all 2 work that you say?(1-create form 2- use auto action)

If you're familiar with the _comprofiler_members database structure then you can do that, but no triggers will be fired. CB Auto Actions would be establishing the connections using API so triggers will fire and you don't need to know the database structure. Do whichever you feel most comfortable with.