How to get on display of the pointed arrow?

[caseopia]

Been trying to find how to make that graph on green arrow appear on my REW display.Can someone tutor me?Thank you

 

[John Mulcahy]

Presumably that is a target response, which can be configured in the EQ window target settings and saved as a measurement using the "Generate measurement from target shape" action at the bottom of the target settings pane.