Is there any option, to create a FTP administrator account, that will be able, to move/delete/create directory on /home folder? I want to control all domains, with one account... is this possible?
You can change the home directory if you want. But you will not be able to change other users files unless you make all the users files group writable and add admin to their group. Don't ask me how to do it. I don't know the details because it has never been worth my time to figure it out.
The user admin has no special privileges except within the DirectAdmin control panel. There are no special linux permissions for a user called admin unless you make admin a root user.