The default task fields are generally helpful (status, assignee, due date, etc), but not all of them are needed (time estimate or time tracked, sprint points, etc). Even though some of these can be "hidden" or collapsed, being able to select which ones are shown by default per list AND/OR the ability to ADD custom fields to that section of the detail view would be a huge value add. Currently, pinned fields are not easily seen, and sometimes are not the fields that are most important. I wouldn't mind if there needed to be a capped number of fields for UI purposes or its limited to certain types of fields only (i.e., no text fields?).

Additionally, being able to organize and group fields together would make scanning for information or adding details easier and quicker.