Hey CliffHanger,
I don't always do the best job in the world when it comes to explainint things! But, I'm gonna attempt this one for you. Keep in mind that I'm doing this on mine as I describe it to you.
To remove iron and foil:
Press the Disc. + button two times. The first press removes iron and the second removes foil. You now have your machine set up to discriminate out iron and foil.
To remove iron and tabs:
Press the Disc. + button 4 times (the first removes iron, the second removes foil, the third removes nickels, and the fourth removes tabs). Now, press the Notch button one time, and immediately press the Disc. + button two times. Then, immediately press the Notch button. You have now re-added nickles. Now, press the Notch button again. Immediately press the Disc. button one time. Then, immediately press the Notch button. You have now re-added foil. You now have your machine set up to discriminate out iron and tabs.
To remove iron, foil, and tabs:
Press the Disc. + button 4 times. Now, press the Notch button one time. Immediately press the Disc. + button two times. Then, immediately press the Notch button. You have now set your machine to discriminate out iron, foil, and tabs.
I hope this has helped you out. Playing with mine is how I learned how to do this. I know it sounds complicated. But, I think that after you've had a chance to play with yours for a while, you will get the hang of it. I did! And, now I can quickly set it any way I want to!!
If I can help you any more, don't hessitate to let me know!
Robert