You don't need to ... just connect to OMSA remotely: [URL] (like [URL] or [URL] etc.)  You'll need to make sure any firewalls are set to allow it.
Dear Experts,  Can we install OSMA (OpenManage) on the workstation and manage our servers from our workstation/laptop. I tried to log in but didn't able to log in. May OSMA maybe not work like this, but I didn't not get a satisfactory answer.            
How to login in OSMA