Stacks settings in Snow Leopard

Hi,

I recently upgraded from Leopard to snow leopard.
Could you please explain where i can make the below setting in Snow Leopard.

In Leopard Dock

For "Documents" n "Downloads folder -->Click and hold i will have a option to show files in "Documents" n "Downloads" -->

View Content-->as a Grid or Fan or List or Automatic:
Display-->Folder or Stacks

In Snow leopard this option is missing,When i click and hold Downloads folder insted of giving me those options this is opening the folder

Please update me where in Snow Leopard i can make this settings