Sets a group name for notebook.
Notebooks with the same name will be able to exchange tabs via drag and drop. A notebook with a NULL group name will not be able to exchange tabs with any other notebook.
the name of the notebook group, or NULL to unset it
2.24
Sets a group name for notebook.
Notebooks with the same name will be able to exchange tabs via drag and drop. A notebook with a NULL group name will not be able to exchange tabs with any other notebook.