Aquesta part de la finestra mostra les opcions per resoldre els exercicis. Utilitzeu la nansa entre les opcions i la finestra principal per canviar la mida d' aquesta part de la finestra, o per ocultar- la tot movent la nansa fins a la vora esquerra de la finestra principal.
This part of the window shows the options to solve the exercises. Use the handle between the options and main window to change the size of this window part or to hide it by moving the handle to the left border of the main window.