If there is a pupil with a known clash, for example we have special arrangements where a pupil is at a language lesson, taking a 6th subject out of one day of their registration class (so cannot be removed from the Reg for one period) OR there are multiple teachers timetabled to take a lesson (for example in PE where all teachers want to be able to reg who they have at the time - different each week). The Registration grid looks utterly unsightly! You should be able to merge the classes on screen to only show ONE registration box PER PERIOD. and then when one teacher (whether the reg or the language teacher) marks as present it is showing ONE mark. The whole of the line automatically updates ANYWAY, but it shows as hundreds or YES NO LATEs across the screen. These could definitely be merged.