The "Advanced" interface provides the ability to be looking at more than one field, or season on the same screen. This can be confusing, as when you select a field on one of two possible field lists you have to watch which application list fills with what information.
Each application list has an information bar above it to tell you which season, field name and crop type the below application records relate to.
To better direct which application list(s) your information is fed to Field Track provides a "Left", "Right" and "Both" radio button selection below each field list:
Use this to direct the selected field's information to the right application list(s).