Delete Locators
Deletes all locators (measurement, evaluation, and labeling objects) in the scene, with the possible exception of invisible locators or locators on reference layers.
Turn on Exclude Invisible Locators in the options if you want to preserve invisible locators or locators on reference layers.
Delete Locators Options
Delete Active Locators
When this option is checked on, only the active locators are deleted.
Exclude Invisible Locators
When this option is checked on (default), all invisible locators are protected from deletion.
This includes locators on invisible layers, invisible locators on visible layers, as well as locators attached to invisible objects (and therefore invisible).
Exclude Layer Reference States
When this option is checked on (default), locators on reference layers (layer state set to Reference) are protected from deletion.