Right now, any disk's Identity page allows defining a YYYYMMDD for purchase date and a YYYYMMDD for manufacture date. There is a category for Warranty Period, but it is preconfigured to only allow from 6-50 months. There is no option to add a YYYYMMDD, and no option to add a custom number of months.   This should be a straightforward UI change to allow for more than just the pre-configured dropdown.    This would be useful because Seagate, Western Digital, and I'm sure