Our org has been using one Price Book for a long time but we have the need to add 2 more due to prices for different regions. I added a new Price Book by going into Classic and adding a new Price Book. I asked it to clone from my existing Standard Price Book but it gave me an error. I then had to add the Price Book without cloning form an existing Price Book. Now I have a problem where I have over 4,000 products and need to add the new Price Book to each of the existing products. I also want them to all to just copy the price from the standard Price Book. Is there a way to do this easily instead of doing it manually? I tried using Dataloader but it doesn't seem to work because it won't let me map the Price Book ID. Any help would be great. Thanks