@Jane I appreciate the reply. My opinion of usability is that it shouldn't be a metaphor at all ("Recycle Bin," anyone?), but rather, a simple verb (Delete). Also that it shouldn't change from version to version, but should remain consistent with the word that has been used (by WP, not Google). I don't see a need to honor the new functionality by changing the word on the button. Old word, added functionality, would be fine. However good luck with whatever you decide to do. People will adjust to it.