Today I stumbled on this video about PowerWF (a visual PowerShell Development tool) creating an OpsMgr MP.

The video shows how PowerWF can be used with PowerShell scripts and converts it to a workflow,and creating a MP with the data for OpsMgr.  

Visual PowerShell Development with PowerWF Studio makes Microsoft’s PowerShell accessible to everyone. PowerWF Studio allows users to drag-and-drop PowerShell commands to create powerful workflows that are easier to understand and modify than conventional scripts.