Not all functions are implemented within the GUI, a few manual steps are required to setup remote access.
This will show how to setup the command table for nrpe commands for

reset_iis
reset_apache

mySQL

Login

root@mylvs01:/# mysql -u root -p

Change the database

mysql> use mylvs;

Insert the statements:

mysql>  INSERT INTO `tblCommands` (`cmdID`,`enabled`,`name`,`command`,`type`,`type-description`) VALUES 
(1,1,'Reset IIS','/usr/lib/nagios/plugins/check_nrpe -H %HOST% -p 5666 -c reset_iis',2,'Reset Service'),
(2,1,'Restart Apache','/usr/lib/nagios/plugins/check_nrpe -H %HOST% -p 5666 -c reset_apache',2,'Reset Service'),
(3,1,'Reboot Server','/usr/lib/nagios/plugins/check_nrpe -H %HOST% -p 5666 -c reboot',2,'Reboot Server');

The Return should look:

mysql> INSERT INTO `tblCommands` (`cmdID`,`enabled`,`name`,`command`,`type`,`type-description`) VALUES
   ->  (1,1,'Reset IIS','/usr/lib/nagios/plugins/check_nrpe -H %HOST% -p 5666 -c reset_iis',2,'Reset Service'),
   ->  (2,1,'Restart Apache','/usr/lib/nagios/plugins/check_nrpe -H %HOST% -p 5666 -c reset_apache',2,'Reset Service'),
   ->  (3,1,'Reboot Server','/usr/lib/nagios/plugins/check_nrpe -H %HOST% -p 5666 -c reboot',2,'Reboot Server');
Query OK, 3 rows affected (0.00 sec)
Records: 3  Duplicates: 0  Warnings: 0