In the Manage > Computer console, you grant a security role permission to ping a computer when right-click the resource. However, after enabling the 'Ping Computer' check box in Right-Click Menu (shown below):
The option is still not showing up when right-click the resource:
ITMS 8.1
The security role is missing the read permission to the TCP IP data class. Therefore it is unable to display the 'Ping Computer' option.