Hi! New to all of this, and I guess I'm a slow learner. If I want to allow combined shipping but need to calculate the final cost (I am offering flat rate shipping) what check out should I use?

Hi.
You can choose a set amount for each additional item from your shipping tools section towards the bottom of the create listing page. If you have a profile set up, you can set it there too.

If that's clear as mud please say so and I'll try to clarify.

Thanks for your response. I have done that, I guess my concern is that I have never done this and I am not sure what is going to show up once I post on Ebay. Should I start out with the Auctiva check out or Ebay? If I choose an automated email to the Buyer, can I manually calculate the postage is is it automatic. Again, thanks