More advanced security limits per account?

Hi

On the website it says that the pro version has "More advanced security limits per account", but I cannot see that.

I have installed the default version and are greatly missing further control over what users can see/do, but cannot find it. Then I testet the pro version, but as far as limiting the user account, I find it identical to the default version.

So what exactly is "More advanced security limits per account"?

Kind regards