UPDATE: I made a working version of this! Repository. Widget Download.
I’m sure it needs a bunch of properties added to it, and you can’t style the widget at all at the moment. But, it works!
Original Answer:
The best way to do this is to create a pluggable widget that uses repeating containment. In Studio Pro, the widget would get configured with:
This would be a great addition for the community! The Mendix tab container uses react-native-tab-view, so it would be best to base your widget on that component.
Here are some resources to get you going: