Add CollapseLevel at first and third column
i had a grip, i want to add sorting at first and third column
item code, Item Description, Warehouse, Qty On Hand, Request Quantity and etc
i want to add CollapseLevel at first column and Third column.
Currently if i set CollapseLevel = 3, the system will CollapseLevel item code, Item Description and Warehouse
But i need Item Code and Warehouse only.