I think it would be really nice if we could set up default customizations for the BO Mapper.  Basically we would set up a default for each type (if we want to) so that when you first link the BO to a table, it automatically applies your default customizations.  This way all you have to do is change those customizations that you want to be different than the default.  I think this would save some time.  I know we have the Customize Wizard already, but it would save you from even having to do this for a new table.