Description Properties
That optional property allows specifying a description for an item that can be displayed later when editing a formula for example. The current description will appear in the Description box when using the Quick Expression formula generator.
This is useful when you create a formula that will be used later from within another formula. The description will help you to remember what is the purpose of each formula.
Example: a virtual field named TOTAL_PRICE will receive the formula (price * qty) * (1-discount) :
And the description "Price after discount".
Now a new formula can be created to apply the local tax. When editing the formula from within the Quick Expression generator, the field TOTAL_PRICE will display the description "Price after discount" in the Description box:
You can use the General Tab in the Properties Dialog Box to see or modify the Description.