Will you be adding the exact same setup to many machine the exact same way?
If so, setup 1 just the way you want it, and use the bulk host import wizard to setup as many machine as you like this exact same way, in one go...
http://exchange.nagios.org/directory/Documentation/Nagios-XI-Documentation/Nagios-XI-%E2%80%93-Bulk-Host-Import-Wizard-Usage/details
http://exchange.nagios.org/directory/Addons/Configuration/Configuration-Wizards/Bulk-Host-Import-Wizard/details
