grid set selection

Hello all, I was trying a simple form as I see it. The form is based on P42101 and when I enter an existing order I want to change the value of "Adjustment Schedule" and afterwards, select this exact same line I've updated and click the "Check price" button. Would be this: I've created this...

I know this has to be really stupid, but I am really lost on how to use this Set User Selection. Sometime ago I've seen this described on one blog, but unfortunately I didn't save it anywhere. So, my question is how to use OR in Set Selection commands set? I need for my app to select data...

I have a view that connects F4801,F3112,F4101 so some of the rows are duplicate except for the F3112 values (specifically the OPSQ column, which is the status) I have written a BSFN that if you pass the doco in it gives you the max OPSQ back. What I wanted to do was run through the grid and...