SYMPTOM:
In Strategy Developer 9.4.1 and 10.x, filters with prompts can not be added to hierarchies in the Hierarchy Editor. Users will encounter a message indicating that filters with prompts can't be added to hierarchies.
STEPS TO REPRODUCE:

Filters with prompts can not be added to hierarchies.
CAUSE:
This is a known limitation with Strategy Developer 9.4.1 and 10.x. This type of operation is currently not supported in the Strategy platform.
ACTION:
Currently this issue is still being reviewed for feasibility by our Technology team and it is not scoped for any upcoming scheduled Strategy release.