Formatting SSD as APFS
I have a new SSD external drive. It came formatted NFTS. I reformatted it to macOS Extended. I would like to format it to APFS but I'm not seeing that available in Disk Utility. Is there a trick to this?
Thanks very much.
P.S. The partition button is grayed out.
MacBook Pro, macOS High Sierra (10.13.4), Late 2016 15" 2.7 GHz i7 16 GB RAM