Share with more than one group

How can i share a file with all of my my groups. Am i just missing something or is there a way. I have tried to share publicly but the file is never available to anyone else. When i share with a group it is available.

So my question is, is there a way to share a file with all or more than one group?

Oh yeah and I absolutely love this plugin. Couldn’t live with out it. By far the best for what I need.

https://www.ads-software.com/plugins/buddydrive/