Indirect EPU rule can't pickup CTA from subsidiary

Summary:

Entity LE1 does not pickup CTA from TOT_LE3 subsidiary using indirect EPU rule

The indirect EPU rule does not pickup CTA at LE1 legal entity with subsidiary of LE3 parent Entities. Also does not pickup with subsidiary of TOT_LE5.

So, I created insertion point scripting wrote a rule in FCCS-40 to copy CTA amount to EPU Source account at parent input intersection. That rule is working as expected to pickup CTA at LE1 with Subsidiary companies of LE3.

Are there any optimizations to develop the rule more dynamically so that parent .child does not need to be defined explicitly. If not rule 40, is there way to utilize configurable consolidation rule.