Answer:
This option is also available in Revit via Dlubal export. For this, it is necessary to install the trial version of Dlubal RFEM or RSTAB after the installation of Revit. Now, the Dlubal Link appears in Revit, which allows you to export to an RFEM or RSTAB file without the need for a license (see the image).
In Revit, make sure there is an analytical model available that is intended for export.
