If you click on a course in a professor's course list it will highlight in light blue. Now if you right click on that course you will see the following popup menu. We will discuss each of the menu options below.
When you select the new option or the edit option (or double click on a current room and time) a small edit timeslot dialog box will appear that is either clear, in the case of a new timeslot, or filled with the information of the timeslot you wish to edit. In this dialog you can select the room, days and time to place the course into. If there is a room or time conflict the program will not allow you to do the addition or the change. Remember that the times use a 24 hour clock. Also, in the room drop down box, at the bottom, there is an option for placing the class in a professor's office, for independent studies or student research.