I need help with using the array tool please with 3dsmax

I want to make this style dome for a building, and I would appreciate it if someone can explain to me how to actually do it.

Ive tried to pivot point center, but honestly I was guessing when I used it and couldnt get it to work the way I wanted it to.

Right now I am looking to know how to array the columns to go around the dome.

Thank you

I made several videos that may help you:

this videos rock dude