How to create multiple AndroidHarnessFragment in an android studio project

I just use jme3 engine to load a model, which can be used in multiple interfaces. How can I create multiple Android harness fragments? Can you give me some advice if you have relevant experience?
Thank you very much~~

It’s better to learn jme desktop before doing it on android

Edit : I can show you how to do this , but this is not the best practice , there’s a built jme feature that enable you to create multiple ViewPorts(game screen spaces) within different or same FrameBuffers , & control these 2 different screens(same GL thread) with multiple game states , have a look at the wiki :