To enter the Effect editor Select it from the Top Menu or Press CTRL+E from any Editor.
By default the Effect Editor is empty and the cursor appears as an inversed block on the top row. The view uses a push scroll method whereby further entries are viewed by attempting to move beyond the display. Unlike the Pattern Editor the information above the cursor is usually much more important than that below which is why the scroll method was chosen.
Note that Grabbed entries only show the Row from which they were grabbed in the right of the Editor Title as Gxx where xx is the row number.