There are alternatives to using a tab pane.
In the example below i use a CustomListView for the tabs and a content pane for loading the tab layouts into.
The CustomListView has an automatic vertical scrolling. The scrollbar is hidden in this example.
This layout allows you to have a lot of tabs. Just make sure you have created as many layouts as well.
Maybe you could try this out in a testproject.
If you need help with this just reply to this message.