some helps needed

Goodmorning everyone, I'm organizing right now the subscription of a group of students on our 3dexperience workspaces. I need from yow helps with some issues:

  1. I insert everyone in the members control center, and now i have to insert all of them in the workspaces. Someone know a method for insert a group of people (or create a group to insert) without search and choose manually all the guys one per one?

     

  2. Does someone know how to delete a workspace with some pieces inside? i need to delete one of it but i cannot delete the files inside cause of some relations that they have with other pieces (relations that i don't care about, so i can delete them directly).

Thank you very much for your attention and let me know ! 

Have a great day,

Michele