I have developed this as editable seating plan as in high school I teach several classes over a few classrooms. Depending on the class I colour code student in ability or behaviour to help me put them into an effective seating plan; once I know the class better I just use one colour. For some classes I will have the plan all prepared while with others I move students in class to seats, and update the seating plan on the board and save it for the next time. Great for cheeky kids who “forget” where they are supposed to sit!
This is created in a powerpoint as it is easy to organise different seating plans for classes or rooms, it is easy to read and you can make side notes that won't appear on the slide when it is in "slide show" mode.