How do I invoke more than one tabs in a single window?

I’m working on creating an editor for a plugin.

I use

FGlobalTabmanager::Get()->RegisterNomadTabSpawner(...)

to registe the tab spawner.

and I use

FGlobalTabManager::Get()->TryInvokeTab(“MyCoolTab1”)
FGlobalTabManager::Get()->TryInvokeTab(“MyCoolTab2”)
FGlobalTabManager::Get()->TryInvokeTab(“MyCoolTab3”)

to display them.

But these three tabs will show in three window, How do I let them show in a single window?