How To Create Master Risk Events

I’m still a bit lost as to why we create a master risk event rather than just a risk event. Originally, my understanding was that by creating a master risk event we could then reuse that master risk event for different, similar risk events. So, as an example, in dealing with our global pandemic, I have created a master risk event for employee exposure and need to duplicate that same risk event for all our departments and make minor changes for each one. I’m not sure how to do this. If I can’t do this, I have to re-create a new master risk event (which takes a ton of time).  There is no place to duplicate and rename that I can see . Any help would be greatly appreciated.