Followup by user and edit followup time/date

Much like Tasks, followups by user field and editing of followups date/time is much needed. 

By field to select a user that made the followup rather than the writer of the followup. As an example the requester emails, instant messages or directly tells you <technician/hotliner/admin> a followup. You add to ticket as followup but now the ticket says it was your followup, not the requester.

Edit followup to change date/time. This is required if you are adding followups that you perhaps forgot to add to the ticket but you may have made your coworkers aware of verbally. Editing the date/time of a followup allows it to be in the correct location of timeline.