Insert a tab into the notebook at a specified zero based index. When
adding a tab to the notebook the tab gains an id that is equal to the
passed widget's id and can be used later to refer to the new tab. If the
id of the widget passed is already used as a tab id then that existing
one will be moved to the new position.
Insert a tab into the notebook at a specified zero based index. When adding a tab to the notebook the tab gains an id that is equal to the passed widget's id and can be used later to refer to the new tab. If the id of the widget passed is already used as a tab id then that existing one will be moved to the new position.