HFM allocation rule functionality

Hi expert!

I am trying to develop the allocation functionality in HFM (like expense allocated from 1entity to a entity list by specific rule).

But confused about how the function 'Alloc'  works:

1. When a account was allocated from 1 source entity to 2 dest entities,  the destination value is INCREASED, but can't see the DECREASE in source.

2. Once the expense is allocated, the value will update the <entity currency> value directly, which means we can not track how much was really allocated from whom to whom.

here is the test code:

Call HS.Alloc ("A#6601050200.E#101999", "A#6601050200", "301", "(A#6601050200 / 2)", "A#none" )

Note above: 'E#101999' is a base entity, '301' is entity menmberlist only include 2 base entities.