This has been bothering me since I upgraded to Yosemite earlier this summer. I finally found an answer: turn on iCloud syncing for email. I did not need do any if the file copying mentioned in the linked solution.
In case you're wondering: No, I am not a rules fanatic, but one IMAP email account through my hosting company has an issue with spam. I turned on Spam Assassin, which tags the junk, and then I use a rule to put those messages in the junk folder, just in case there was a false positive.
You can convert a single well top set to a points object.
- Select (check the box) the well top you want to be points.
Right-click on an attribute for the tops layer (e.g., Z)
- Select “Convert to points (using filter)
- You will get a new points object.