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. Since 2.24
the name of the notebook group, or NULL to unset it. [allow-none]
See Implementation
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. Since 2.24