How to add 3D Modeling Workspace?

Hi, 

I have an Enterprise Plus license but the option for 3D modeling is not available in my dropdown menu?

How should I go about to add this to the option? https://blog.draftsight.com/2019/06/11/draftsight-2019-3d-features/#:~:text=First%20of%20all%2C%20there%20is,and%203D%20features%20of%20DraftSight.

 

As reference to what I am looking for?