I thought this would be quite simple - creating a filter for "Position in 50 Day Range". When I go to the pre-existing formulas, Position in 20 Day Range is represented as [R20D] so I thought that by putting [R50D] in the source box would be obvious as the formula for a 50 day range - but I get a parsing error. Even if I put [R20D], I get a parsing error so I'm obviously not understanding the syntax. I am not a programmer but I figured this one to be a no-brainer lol.

Edit - Now the [R20D] works but [R50D] is giving me an "Unknown Filter" error - so the error messages are changing on me. I have typed it in several times so you will have to trust me that I have typed it in correctly - [R50D]. Unless I am completely misunderstanding what the function of the Formula Editor is. I thought that instead of our having to ask you to modify existing formulas, we would be able to do it ourselves with the formula editor.