I’m moving this issue to these forums from https://github.com/ironmansoftware/universal-dashboard/issues/463 as it’s better suited here.
Looking through the repo it looks as though you’ve implemented some things in to UD that require initialization like the collapsible, select, or modals to name a few. Could tabs not be implemented in a similar way? Does it require a new React component?
I apologize in advance for my ignorance and lack of proper terminology but I’ve only just barely scratched the surface of web development.