You can stack field codes - You can put multiple field codes in one field that will auto-fill the info regardless of whether it's being used for corporate or personal use (ie. SIN and BIN).

Auto-sizing and consistency with font size - If you need to fit more information into a smaller text field box you can auto-size certain text fields. However, in order to maintain consistency of font size throughout the document, you won't want to auto-size every text field.

Alignment if the text field - You can choose to center your text in the middle of the text box to make for a cleaner looking document.

Joint Investors - If you're adding a joint investor to to the document make sure you are including the additional field codes with the primary investor.

Adding Text fields without a fillable field code will create a text box allowing users to type un-populated fields while previewing the form