Space-wide Bulk Actions
Magic Labels makes managing Labels space-wide really easy. Simply go to "Space Settings" -> "Integrations" -> "Magic Labels" to get to the Space-wide Bulk Actions.
Add a label
Enter a label in the top-most input field to add labels to every page in this space.
Remove a label
But you can not only add labels, you can remove them as well by just choosing them out of the dropdown. In this dropdown is every label from this space listed. After the label is chosen, clicking “remove” deletes this label from every page in this space.
Rename a label
The last option is renaming: renaming can be used to correct spelling mistakes or merging two similar labels.