Feature Request/Question: Propagate Activity Stream Messages

Really awesome plug-in and thank you for it.

In the FAQ you have stated:

Do activity stream messages propagate up (from child to parent) or down (from parent to child)?
No. There is currently no way to have activity propagate up without creating duplicate entries in the sitewide activity stream.

Are there any plans to implement this feature? I am trying to propagate group activities up through the group hierarchy, where post in Child group(s) also appear in the Parent group(s). It needs to be a single entry for collecting votes and comments. Any help in how this could be achieved would be incredible.

https://wordpress.org/plugins/bp-group-hierarchy/