Easy way to link a show only field to Form
Let say you want to show item material status in Item Availability Form, you may just create a new edit field in form, then bind the form component to
COLLECTION(SL.SLItems(PROPERTY(Stat) FILTER(Item = FP(Item)))) .
Please note that if you want to do this in grid column, since the value is not in collection, so the grid column would be blank initially. Only when you click on a row, the column value would show.