try this link
http://documentation.daz3d.com/carrara/Carrara7_User_Guide.pdf

You know this should be readily available at DAZ, but I spent an hour and a half searching for the manual and couldn't find anything other than C8 manual.  one quick Google search netted this link, all of 5 seconds.

Might have had something to do with it being 3 am when I started.

Graphic Observations: Many problems can be solved by reading the manual Not all answers are equal Some problems don't need answers