Hi Sarah,
The short answer to your question is no, they are not currently supported in TM1Web.
Hierarchies are only currently supported by Planning Analytics for Excels non-formula mode reports (quick reports and explorations) and by Planning Analytics Workspace books. They are also supported for us in TI processes and a limited number of rules. We are working on a new report mode in PAfE that will support hierarchies in both Excel and Websheets (TM1Web).
As an aside...hierarchies are not
virtual in any sense. They are as real as any other object in a TM1 model. We are still looking into hierarchies that are truly dynamic based attributes as a future enhancement. We will not see this in TM1 Server in 2020.
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Stuart King
IBM Planning Analytics Offering Manager
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