With sklera you can select, edit and/or delete multiple Spots at the same time. To do so, simply click on the Spots one after another and then click on the gear icon while hovering over one of the spots. This will bring up this prompt:
Note: 'Edit this spot' will edit the most recently selected one.
Alternatively, you can select the spots and click on the Actions menu, followed by the 'Edit' entry within.