You should be able to do a few things here:
hiGetCurrentWindow()->stopLevel = 0 ;; displays level '0' data only, not contents of cells
hiGetCurrentWindow()->stopLevel = 32 ;; displays all levels, down to 32 levels of hierarchy deep
Or, look at CIW -> Options -> Bindkey, select Layout, enter "F" in the "Key or Mouse Binding" field and move off the form so that it updates - look to see what (if anything) the 'F' (Shift-F) bindkey is set to. Alternatively, press "Show Bind Keys" and view the Layout bindkeys in the text window.
Load the default bindkeys yourself:
load(prependInstallPath("samples/local/leBindKeys.il")) ;; load the default layout bindkeys
Finally, use the layout window's Options -> Display menu and modify the Display Levels: Stop Level number (e.g. set to 0 to view only top level data, 1 to view one level down in the hierarchy, etc.)