Can I see my own special fields in iCal?
You can't "add fields" to iCal through Zulu. That is, iCal only displays a few fields and we can't change that. However, you can load data from more than one field into the field iCal does show. For example, you can create calculated notes fields (auto-enter fields actually) that concatenate data from several fields into your solution, gathering that into the notes or summary displayed for an event in iCal. Learn more here: Calc Fields.