I found that I can hide table elements based on HTML5 data attribute values.
This solves a shortcoming of Caspio datapage configuration options:
If you have a datapage that uses Inline Insert, you will find that you must choose between allowing a field to be editable on Insert, and allowing a field to be editable on Edit.
In my case, I wanted to allow Inserts with a date, but once the record was there, I didn't want the date to ever change. When you enable Inline Insert, you don't have this ability, because if you disable editing the date, then one can't Insert new records with a date