Pinning a Tab

To prevent an Object View tab to be reused for another object or to prevent any tab to be removed unless you explicitly asks for it, you can "pin" it. In the right-click menu for a tab you find a Pin Tab toggle to accomplish this. A red pin icon is added to the icon when pinned.

You can also click on the icon in the tab header as a shortcut for toggling between the "pinned" and "unpinned" states.