No 'options > add dimensions' available in sketcher?

Hi All:

I was thrilled to see this video:

http://www.youtube.com/watch?v=OnfY6p5K2QA

Unfortunately the 'options' panel doesn't seem to be available on my install of SW2010/11, and as such I have no option to 'add dimensions' automatically. What gives?

Adam

SolidworksSketching