Non immigrant US family visa

I have been approved of US visa recently, yet I regret that I did not include my family. Pls let me know how and as to what way and extent can i help them apply ?  Tnx for those who can share their insight ..

What kind of visa do you have?

It is a b1/b2  tourist non immigrant visa

You have to apply from scratch for them i.e. follow the same process as you did for yourself.   They will have to go in for the interview and everything.

You can provide them with copies of your visa to be able to show that they will be accompanying you as well as provide documentation proving financial support.  I don't think they will let you go inside the Embassy with the family for the interview as it's only for applicants.