You can cancel a lesson - without the entry of an absence - by clicking on the button <Cancelled>
. This cancellation is displayed in the respective timetables and in the substitution window. Another click on the button <Cancelled>
undoes the cancellation.
The following examples deal with spontaneous cancellations of parts of a lesson.
Example: Cancellation of a coupling line
In class 3a, on Friday in the seventh period, the PE lesson for boys (PEB) with teacher Rubens shall be cancelled whereas the PE lesson for girls (PEG) shall take place as scheduled.
| 1. | Open the file demo5.gpn and the scheduling dialogue (right mouse click | scheduling dialogue) and click in the scheduling dialogue in class 3a at Fr-7. |
| 2. | Click in the details window in the line of teacher Rub. |
| 3. | Click on the button <Cancelled>. |
| 4. | The period on Fr-7 it is displayed with a red backgroud, indicating a change. In the details window you can see that the lesson of one teacher of the coupling was cancelled. The cancellation is displayed in the substitution window and in the timetable too. |

Example: Cancellation of a part of a class
Newton is teaching students of the classes 2a and 2b in the subject GA on Tuesday, October 6th, in period four. the students of the class 2b cannot attend Newton's lesson whereas the students of class 2a shall have their regular lesson.
| 1. | Open the file demo5.gpn and the scheduling dialogue and set the latter one to teacher New. |
| 2. | Click on Tu-4. |
| 3. | Click in the details window on the field "Class(es)". |
| 4. | Press the blank-key to get into the edit mode and delete the class 2b. |

This change is displayed in the timetable and in the substitution window.
