Actions question

I’ve built a set of apps which are forms that people use in their business. To simplify each users list of apps, I created a launcher for different departments with their suite of apps contained therein. The feedback is that the menu option for returning to the launcher seems a bit cumbersome so I went to add a Home Action button to a launcher. But I see that this will only add the button to the app launcher and not to the apps contained therein. Would I go in and add them individually to each app and if so how would I enable the action to point to a particular launcher based on the Userid?