How to give a different value for Basis and Target for one particular COA segment?

Summary:

The allocation range is common for both target and Basis. But the requirement is that the one of the segments should be same as source and other segment is derived based on the headcount data in basis.

Content (required):

The source sub account is say XXXX but basis which is STAT currency journal has subaccount 0000. Hence the Target also gets populated with 0000 but instead we would need XXXX to be there. Also it is not a single value but a hierarchy (parent value needs to be used). is there a way to achieve this

Version (include the version you are using, if applicable):