Minyaa Suite provides following CustomFieldType.
WorkersCFType provides give the ability to see the list of Worker on an issue.
WorklogCFType provides the ability to log spent time for done work, from a Transition Screen.
ExternalCFType is provided to manage External entities.
AbstractAjaxSearchableExternalCFType is extending ExternalCFType providing search capacity through AJAX request.
ManageableAsProjectCFType is extending AbstractAjaxSearchableExternalCFType.
AvailableWorkflowActionField provides a Browser columns with Workflows actions.