Developer forum

Depending on what you actually need, you may be able to get it by using Item based paragraphs [http://manual.dynamicweb-cms.com/Dynamicweb-On-line-Manual/Items/Example-with-item-paragraph.aspx] and creating your own (paragraph) fields.

You can also use Razor [http://developer.dynamicweb-cms.com/documentation/for-designers.aspx] in your templates if you need to compute something on the fly.

See https://github.com/dynamicweb/itembasedmodules for examples on using items and Razor in Dynamicweb.

Best regards,
Mikkel