Hey Sunshine,

Check out this sample custom item:
www.empirisoft.com/support/showthread.php?t=383

It allows you to have the subject enter multiple values with one item *and* have the values checked for a valid total (e.g., such as 100%). See the section in the new v2006 manual on custom items for an overview if you're new to using them. Editing the sample html file in a text editor should be pretty easy for the item you are describing but let me know if you run into any trouble and I'll be happy to help!

-Blair