# Namespace OptimaJet.Workflow.BpmnPlugin.BuildSteps ## Classes - [MessageCatchEventBuildStep](https://api.workflowengine.io/bpmn-plugin/OptimaJet.Workflow.BpmnPlugin.BuildSteps/MessageCatchEventBuildStep/) Represents a build step specifically for handling BPMN message catch events in a process definition. - [TerminateEventBuildStep](https://api.workflowengine.io/bpmn-plugin/OptimaJet.Workflow.BpmnPlugin.BuildSteps/TerminateEventBuildStep/) Represents a build step specifically for handling BPMN terminate events in a process definition.