How to use the Freehand Curve drawing add-on? Enabled/Installed the add-on, can not get it to work though...

There's the Options tab in the T-Tools panel, but there is no Draw Curve button in the Create tab.... Shift+LMB does not work as well...

Any idea why this might be?

Thanks

Peter
Took me some tries to figure it out myself: 


Add a Bezier curve to your scene
Tab into Edit Mode (with said curve selected)
Shift+LMB draw your freehand curve
Delete the Bezier curve from step 1