At a glance

• Dark blue – teacher clashes;
• Light blue – partial compatibility. Some teachers clash some of the time. There might be half lines in one or both of the years.
• Red - these lines have hardcoded periods, making them incompatible
• Pink – different spread requests. One year in that line might be asking for a double, but the other year is asking for NoDoubles.
• Pale grey – these lines are compatible, if you are prepared to use fallback teachers. Some will also indicate that you will need to use fallback rooms.
• White with x-fallback rooms – compatible if you are willing to use x number of fallback rooms.
• White – these lines are compatible!

Drilling down

1. Filter > Year to prioritise the year’s lines as column headings
2. Click on a cell to see more detail about who is involved. Select View as timetable to see intersecting lines as they would appear in the Master grid
3. Double-click on a cell to see intersecting lines as they would appear in the Master grid
4. View > Statistics to see a row at the bottom of each sub-table. This gives a numerical count of compatible periods. Larger numbers are good. A number of matching, compatible periods less than the width of the line indicates it will be impossible to timetable this line 

1. Click on a column or row heading for a visual representation of possible matching periods:
   1. Opens the slide out displaying a timetable grid – click on a cell for further information.
      1. White – it can go there;
      2. Grey – it cannot go there;
      3. Green – it is hard-coded to that period;
      4. Orange – Recess or Lunch;
   2. The more empty, white space you see, the less stressful you will be while constructing your timetable.