Hi Marcel,
See if you have a ULx folder in \National Instruments\Shared\ and in \National Instruments\LabVIEW 2021\Examples\. If the ULx folders are present the support is install. However, the menu file somehow vanished. The following KB article addresses this topic:
https://kb.mccdaq.com/KnowledgebaseArticle50382.aspx
The help file should be in C:\Program Files (x86)\National Instruments\Shared\ULx. If it is there, you could make your own shortcut.
Best regards,
John
