Like in Server/DC I would to create a script field and add it as a common custom field, like the other fields.
Currently its not possible to associate a scripted field to a desired screen due to which new projects created are missing scripted field.
Also we are not able to place the field in the desired location as scripted field must be located next to the similiar group of custom fieds
This would be nice for me because there are users in my organization who would like to view scripted fields in their default output columns for JQL searches.
For us it is important to treat scripted field as custom fields (as it was in server) in order to use them in workflows conditions and validators