Answer:
To use our Grasshopper plugin, a COM license is not required (although the communication takes place via the COM interface).
There is an interesting webinar on "Data Exchange Between Rhino/Grasshopper and RFEM".
Grasshopper Plugin
Does the Grasshopper plugin require a special license (for example, RS‑COM)?
Author
Mr. Baumgärtel provides technical support for Dlubal Software customers.
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