Duplicate
Click Duplicate.
The flow is copied. copy is appended to the end of the flow name.
To edit the copied flow, select it from the dropdown.
Rename the flow if you wish. Make changes to the new flow as desired.
Apply the new flow (from the Flow Controls section of the Properties Palette) to a geometry to preview its results.
Note: duplicating a geometry with a flow applied does not duplicate the flow. Any edits made to the duplicated geometry's flow will affect all other geometries with the same flow applied.