On the Basics tab of the Timetable Menu you will find the button Reports in the Report functions section. Curriculum Matrix is one of the buttons on the Basic tab of this form.

Use the Curriculum Matrix button if you wish to see which pupil in a school year has chosen which option or which teacher each pupil is being taught by. You can choose to base it either on curriculum strands or on actual subjects taught. Thus if you want to know how many pupils are studying Spanish and French, for example, you can find out quite quickly.