Insert RelativeLayout inside display group on Corona Enterprise

So, I have a specific android design that I want to show inside a LUA display group.

How can I do this?

I’m already able to show the android design over all the application but now, I want to show it only inside a specific part.

By the way, I don’t know if it matters but I’m using “com.ansca.corona.CoronaEnvironment.getCoronaActivity().runOnUiThread” to show the design.