Feature Visibility - Endpoint Control

Hi All,

we want to test Forticlient connecting to Fortigate.  I see under Feature Visibility that I need to turn on Endpoint Control.  

I'm wondering what will happen if I enable this feature but the vast majority of our computers don't have Forticlient installed.  It appears to give a warning that computers without Forticlient will be sent to a download page for the software, but we want to prevent that from happening while we test the client.