In the Trailhead module "Combine the Power of Process Builder and Cloud Flow Designer "- How does one create the "sObjects Variable | Opportunity | StageName" in an autolaunched flow?  There are no instructions in the module on how to do this.  The directions given in the module do not work: 
From the Palette tab, drag an Assignment element onto the canvas.
Name it Update Opportunity Fields.
Set the stage to Prospecting.
   For Variable, select SOBJECT VARIABLES | opportunity | StageName.
   For Operator, select equals.
   For Value, select PICKLIST VALUES | Prospecting.

In the Trailhead module "Combine the Power of Process Builder and Cloud Flow Designer "- How does one create the "sObjects Variable | Opportunity | StageName" in an autolaunched flow?  There are no instructions in the module on how to do this.  The directions given in the module do not work: 
From the Palette tab, drag an Assignment element onto the canvas.
Name it Update Opportunity Fields.
Set the stage to Prospecting.
   For Variable, select SOBJECT VARIABLES | opportunity | StageName.
   For Operator, select equals.
   For Value, select PICKLIST VALUES | Prospecting.