Tabs are a great tool to build entire dashboards. And this is the point. At the moment Tabs-Menus only allow items that are directly defined as Tab-Links for the Tab-Content.
It would be great to be able to create like "pseudo-tabs". Elements not linked to a tab-content-item. This would be great for e.g. Logos at the top, Copyright-Stuff at the bottom etc.
Another Example: Creating Div Blocks within a tab to create like a Tab-Grid and other crazy stuff, revolutionizing Web Design...