Enter date in Prime program?

[CheshireChris]

It is a little frustrating that the Prime can do things on its own INPUT forms that a user cannot do on a programmed form. The nice date selector is one example; another is the ability to make an additional field appear in response to a selection. Eg on the "Home Settings" page, if you change the number format to "Fixed", an extra field appears letting you choose the number of digits to display. It doesn't seem possible to hide and show fields programmatically in an INPUT form that you write yourself.