Organize multiple sites in directories

Hi,

I'm new to cpanel and i have some stupid questions.

I have one domain and the files of the domain can be found in the public_html folder.
If I add a second domain I suppose I should create and new directory in public_html and point to that dir? At the end I'll have in the root of public_html the files and dirs of the initial domain and here also the directories of other domains that I added later.

It's possible to create a new dir in the public_html for the first/initial domain and point the domain to that dir?

So at the end I want to have in the public_html something like this:
domain1.com (directory)
domain2.com (directory)
domain3.com (directory)

Thanks!