I think he means to check the source code of the page and see what the link to the image is, copy that, and paste it into your address bar. For example, mine looks like this: https://www.gravatar.com/avatar/27f1f6277c691326bea57281bca8e0a1?s=120
Https://docs.blesta.com/display/user/Multicraft#Multicraft-InstallingMulticraft
See "Dedicated IP Address" section. Also note, that version 4 contains an updated Multicraft module with better handling for the IP + default port.
If you have a trial license and want to upgrade your test to Blesta 4.0.0 BETA 5, email sales @ and we'll get a copy to you so you can try the updated Multicraft module.
$logged_in is set by AppController, so any page that extends AppController and uses ::preAction will have it defined. Your example using it, however, employs opposite logic for displaying the link.
if (!$this->Html->ifSet($logged_in)) {
...user is not logged in...
}
The behavior of checking that option is also described in the docs. The service will not renew, and therefore will not generate an invoice for its renewal.