NG - How to change OS detection?

[agroch]

I ma trying to add both HTTP & DHCP OS detection and when I try to save it I have "This is a default object and cannot be modified."

I understand I have to create new one but how can I add it to existing policy?

[samantha_lynn]

You'd want to go to Configure> Network Policies> Open the Network Policy in use> Go to the Additional Settings of the Network Policy> On the left hand side menu under the heading Network Services click on Management Options> Under the system settings category within the Management options you should see an option for OS detection, where we can set it to use DHCP option 55, HTTP, or both DHCP and HTTP. Is this what you're looking for?