You have many control options on the list of all records to:
•Consult the name of the current screen displayed
•Adjust the width of the left list
•Apply selections on the total list
•Navigate over different pages at long lists
Note that not all buttons in all screens are applicable and will therefore not be available in these screens.
In the further help screens each of these areas above are being discussed individually, or you can click on the image above for more direct information about the area you want more information on.