This section assumes, that you have already created a workflow, that you now want to edit.
Now you see a list of your workflows:
First you need to click the WORKFLOW ribbon in the top of your browser session to view the workflows:
You can delete a workflow by placing the mouse over the workflow, that you want to delete, and then click this icon on the very right:
To edit an existing workflow you simply (left) click on the workflow, that you want to edit, and then the contents of the workflow is shown:
On the workflow you can edit either the workflow headings or the components of the workflow.