This question already has an answer here:
I'm currently downloading the Blockchain on Bitcoin-Qt and i'd like to change from the standard directory Bitcoin-Qt stores the data (on mac) =
to a harddrive, but can you do this without re-installing bitcoin core and choosing a different directory? If not, can you just drag and drop the data you've already downloaded/synced in to the new directory so that bitcoin core identifies that as the real blockchain, and that you don't have to re-download/re-sync everything?
It does not answer my question, i want to know how to change directory of the blockchain data on a Mac, not on Windows.