Using Subdirectories in find or replace?

I am a ColdFusion Studio user and am beginning to investgate Dreamweaver 8 from
the Studio 8 upgrade. In ColdFusion Studio when you do an Extended Find or
Replace in a specific directory, you can include it's subdirectories. In
Dreamweaver's Find or Replace panel, I don't see that same option. It appears
that you can only do extended Finds or Replaces in the chosen directory. Is
that indeed the case, or am I just missing something?