FRS functions with members and custom headings

Hello:  Looking for help with FRS Studio for Budget Reports.  If I am not in the correct "space", please let me know.

I have an Account member hierarchy like:

Total exp

  A) Oper Exp

      1) Exp

       2) TE Alloc

       3) VI Alloc

       4) Ovhd

I want to use A1) in the Account column and I have children of in the entity column.  I want to use the custom heading in Account Column of entity Alias of Alisas Column.   It works fine when I use A in Account, but doesn't work with I use A1.   Anyone know why?  The custom heading is <<MemberAlias(current,current,"Entity")>> , would that have anthing to do with choosing A1 instead of A?