Opening Projects directly in editor without having to open the preview tab first.

Hi, 

i am using 3dx catia as a Student and one person on a laptop. I have no use for previews or frustrating cloud features. My question ist, how do open a part directly with a double click In the editor mode. No right clicking and „open with“ command don’t work and the search bar is also no option. 
I’d appreciate if someone has maybe an answer for my problem. 
Thank you in advance