Not a Parent function?
I have a line item with a list format where the items contains some parents. Eg. List contains Parent: Sector A with Child Material A, Material B and Material C Parent: Sector B with Child Material D, Material E I want to either 1) allow the selection to excludes any parent items, (Select Only Material A, Material B, Material C, Material D and Material E) or 2) Build a validation item to check if the selected item is not a parent item (Not Sector A or Sector B ) This is to to ensure that the selected item can hold values. Is there any way of achieving either options?