Point my Primary domain

[http]

Hello all:)

I have a question that hope somebody could help me whit

Is there any way to point my Primary domain to a specific dir inside the
/public_html/

I want my dir to look something like this

"Primary domain"
www.mysite-1.com point it to
/public_html/mysite-1

"Addon domain 1"
www.mysite-2.com point it to
/public_html/mysite-2

"Addon domain 2"
www.mysite-2.com point it to
/public_html/mysite-2

I have no trouble pointing the addon domain
it´s the Primary domain.

Thank you for any help and have a nice day