When you resize a tab group, the views in the tab group are automatically resized as well.
This task demonstrates how to change the size of a tab group in the current perspective:
The tab group has been resized. Note that by resizing one of the tab groups, the others also change size to accommodate all views in the workbench.
You can resize the workbench by positioning your mouse cursor over the outside edge of the tab group and following the steps above. The tab groups are resized equally to fit in the resized workbench.