These advise what sort of information should be entered into the field. These instructions should be read and then deleted before the required information is then typed into the field. Some data instructions give examples of what needs to be typed into the data field. Such examples are always in lower case. If the given example is applicable to your situation, you can simply delete the data instructions which appear in upper case, leave the lower case example in the field and make any modifications to it you require.
Some fields simply contain the most usual entry in lower case with no upper case data instruction.
The most usual entry has been placed in a data field so that it can be changed on the rare occasions when it does not apply. Reasonable attempts have been made to build flexibility into each form so that data fields exist for each eventuality. For example, where there are multiple defendants, most forms contain a spare field of unlimited length so that any number of extra defendants or other parties can be typed into that field together with addresses and the like. This way the field can be deleted if the party is signing the document himself instead of having his solicitor, barrister or agent signing it form him. Data field entries can be modified and saved to your hard drive.