Hello,
Unfortunately, there is no such possibility. The values depend on the property type. For example, Lockout Time (schema name lockoutTime) is of the Large Integer type. As such allowed values for the property are Unspecified, Never, and a date. There is no possibility to replace any of those with a custom text.
For your information, it is possible to enable displaying certain statuses for accounts. For example, you can enable the Account is locked out status. As a result, when viewing locked accounts, the status will be displayed in the header. For accounts that are not locked out, there will be no status in the header.
