Comics-scifi_collectibles Is a Volunteer Community Mentor.
@collectingtherare Are you asking about combined shipping rules?
I made a post about how to set up shipping rules with screen shots awhile back. Keep in mind that if you select the combine weights option instead flat rate it won't work well if your package will end up being over one cubic foot. So I don't recommend calculated combined shipping rules for larger items because the dimensional weight surcharges will not be charged to the buyer.
Let me know if you have any questions on setting up combined shipping rules after you take a look at my link.
