Overview

When selecting any Meta-Attributes, the correct editor is displayed. Currently provided editors are 

String Editor

It is the same as default :

Boolean Editor

 It is provided for Meta-Attributes identified as Boolean.

Condition Editor

 It is including also a Boolean Editor, and it is used for some Meta-Attributes provided by Minyaa, related to permissions on issue operations.

UserByStep Editor

 It is provided for each defined User By Workflow Step customfield.

Worklog Type Editor

 It is provided at Workflow Step level in order to define the list of allowed Worklog Types.