Tabbar arrow mode

Hello, I am a new comer.

I am trying to test which version is the best for my new project.

Latest 6 version is under testing.

I need a Tabbar which have many tabs that added and removed dynamically.

When there are many tabs, there is no arrow buttons. So, screen width expanded and UI looks ugly.

Can you help me? Or, I do better use 5 version instead 6?

Thanks.