Now that you have defined your main plan, you can start partitioning this plan. Finalcad provides you with the following range of tools as shown in the window.
Available when the Xref opens, this palette allows you to clean up and lighten your plan.
All the tools for cleaning your plans as well as the polylines to draw the areas.
Once plotted and named, here are the tools to generate and export your zones.
Use the color scheme to indicate the type of zone.
See this article for more information on the shortcuts available from the command line.