Import CATIA V5 Files in 3DX

Hi Community,
I would like to open CATIA V5 (.CATPart) files in the 3DEXPERIENCE CATIA Student Edition. Unfortunately, the import option doesn't appear in my menu.
Has anyone else experienced this? Do you know how to solve it or enable the feature?
I would really appreciate your help – thank you in advance!

Best regards,
Max

This is a screenshot from a youtube video, but the button is missing in my case:

Edu CATIA 3DEXPERIENCE CATIA