- Extensions let you cherry pick functions and features, only paying
for those that make sense in your specific situation. - On shared hosting servers, you can turn extensions into an additional
revenue stream by charging your customers for using the features
delivered via the extensions.
Plesk extensions can only be installed by the Plesk administrator. Some
extensions add functions that can only be used by the Plesk
administrator, while others add additional capabilities to reseller and
customer accounts.