When creating a workflow, it makes it very hard to administer when you cannot move any of the options or arrows / unlink and relink. As it means you often either have to rebuild or copy and re-create elsewhere. It also means when something is deleted, there is a huge gap between one branch and another. This makes it more difficult to navigate through the workflow to see each branch.
If you could unlink and move a branch by dragging this would make administration on a workflow much smoother. If you can then re-link and condense workflows yourself by clicking and dragging the branches or options themselves making it easier to see and format the workflow.

