We are moving along in our master data planning, It's looking like we will need some custom fields added to Items AND probably some in the Customer area. Is it possible to add custom fields in Business Edition? If so, how?

We are moving along in our master data planning, It's looking like we will need some custom fields added to Items AND probably some in the Customer area. Is it possible to add custom fields in Business Edition? If so, how?
@Kimberley523: This will be possible in a future update. You can find more information from the following links:
blogs.msdn.microsoft.com/.../announcing-the-preview-of-development-tools-for-dynamics-nav
blogs.msdn.microsoft.com/.../more-information-about-the-developer-preview-for-dynamics-nav
Thanks,
Mustufa