[Qt-creator] Sources and Headers?

[Robert Caldecott]

Am I missing something here?  I have the Qt Creator Technology
Snapshot (v1.2.90 from September 10th) and I keep reading about some
magic source/header filters in the project tree, but have yet to see
evidence of such a feature.  If I create a new Qt GUI project I get my
.pro. .cpp, .h, as nornal all grouped together.  Is there a setting I
need to enable to group headers/source files together or am I going
mad?