earthwork in SS4

I am working in Power Geopak V8i SS4 Version08.11.09.878

 

I have question about calculation earthwork with this product.

How do you calculate earthwork within construction limits and when you have existing pavement removal, how do you deduct existing pavement/shoulder volume from the unsuitable material  by running Earthwork command.

I need to calculate earthwork for each stage and also need to calculate unsuitable/existing top soil removal per stage.

 

When I am using the corridor command to calculate earthwork, it does not give me the option like the old Geopak, to not include certain component, add certain component by level symbology etc.

 Also If I edit cross sections manually after displaying cross sections, does earth work command recognize those edited element?