I don't understand why some fields can be edited from the kanban board. Example, you can click on an issue and it appears on the far right. Some fields can be edited, while other fields cannot or are not even seen. Then when you open the issue fully, some fields can be edited, and some again cannot until you hit the edit tab.
Does anyone know the difference and how I can set a custom field to be editable either from the kanban board or fully opened issue?