Layer7 policy for ASM V12.1

Hi;

 

I am having difficulty associating a Layer7 policy rule with the ASM engine. Basically, I have added a Layer7 policy defined the condition to match a certain URL and I want the action to have the http request inspected by ASM. How do I do that?

 

When I choose Enable I don't find ASM as one of the options. Please take a look at the screen-shot attached.

 

Kindly Wasfi