In ticket comment, update subject should be editable and apply to ticket status
In ticket detail and new ticket comment section, update subject should be editable and apply to ticket status. So, we know what ticket status is in process.
Such as: New, estimated, scheduled, pending customer reply, customer approved, parts ordered, part received, additional issue, pending solution, completed, invoiced.
Using ticket comment to update ticket status can provide actual work progress information, which is important and better than manual status update in ticket list section.