The current pack provides additional administrative functionality, which is not available OOB on the standard K2 Management site, including the following ones:

• Powershell module with the useful cmdlets to manage K2 Server - to be extended with new versions.
• Live Instances Migration
• Update of the DataFields and XML fields inside the running workflow instances;
• Update of the Folio for the running instances of the Workflow;

Please, refer to the following links:

• Installation and configuration
• How to update a DataField
• How to migrate a Process Instance

For more details, please, refer to the following link: 

https://github.com/dudelis/k2-management-pack