This is from Adobe Support: There doesn't seem to be any easy way to do this. You could create a new group for each Launch. I'll make a feature enhancement request to find a better way to handle this. 

I connected Adobe support.  They have acknowledged this isn't currently supported, therefore there is no answer to the question.

We are looking to start using the launches feature of AEM within an established space where multiple projects exist.  We have users who can only view one or some of all the projects, all fully controlled via different groups with ACLs that restrict on the pages within /content and the folders within...