Currently no mark is visible in the register if a student is marked out part way through a lesson (e.g for a peri music lesson or leaving early for a sports fixture). The mark should go in the box for the whole period to alert the staff member taking the register at the start of the lesson that the student will be leaving.
Thank you for your suggestion. We are currently working on enhancements to the Out of School/Future Absence/Registration Manager functionality that should include your suggestion. I will post updates here as the project progresses.