Azure started supporting extra large disk sizes in September 2018 (as described here) as a public preview, currently available only in the
West Central US region.
I'm trying to create a new
S60 (4-8 TiB HDD) disk in a resource group located in the above region. However the disk creation dialog still limits me to up to 4095 GiB disk size. It even tells me that larger sizes are currently in public preview.
How can I actually create the disks described in the preview?