How do I name sub-workflow actions in parent workflow?

I have created an Oozie workflow that consists of multiple sub-workflow actions. When the workflow is executed and I look at it in HUE and in the graph tab all the actions are named subworkflow and therefor no way to distinguish between them other than clicking on the sub-workflow action that takes you to a new page but this is obviously very inefficient.

How can I explicitly name each sub-workflow action so that I can see the name in the graph instead of just the generic name subworkflow?

Please see attached screenshot.

I'm running Oozie version 4.1.0-cdh5.10.0 & HUE 3

You can edit the workfolw name as below,

Or edit the json file with name: "/subworkflow"/