Sort Line Item Subsets

Description of the enhancement required:
Ability to sort line items the same order in the subset as they are in the originating module

Example of the enhancement:
A Line Item Subset for P&L report that he is using in another module; however, the line items in the Subset are not in the same order as the Line Items from the originating module. Every time users try to fix the way the lines in the module using the subset, the sort gets even more messed up.

Currently, line item subsets used as dimensions are sorted based on the "Parent" column in the source module. Users want this sorted the same way it was sorted in the source module.