How-to create a move user database to another directory

Hi,

I have a Lotus Domino 8.5 server.

My domain created is called: DOTZ-DOMINO

All users created is inside the mail directory.

I am creating more 1000 users in my domino server.

Now, I was wondering how I can create a directory which all the new 1000 users that I will create and move into it.

When I create and new memo I can choose which directory I will select the users.

Thanks,

Anderson