RE: [Ifeffit] delR and delE

Hi guys, I have another question. I have started from the beginning so that I could follow all of Shelly's suggestions. I also looked up your start guide for artemis fitting in which it says u can click the "fit background" button if u see low R peaks. And then in the end it says to click the "use previous background" button. but I can't seem to find it. Could anyone direct me?? Thanks Ritika