In the Work Hours view, you can schedule when your Profiles should be activated. You can post individual events and recurring events. So, for example, if you are free every Friday you can post it as a recurring event. If you take your lunch the same time every day you can set the system to automatically turn on the Lunch Profile at that time.
Creating Events in the Graphical View
Use the Graphical view to see your Work Hours and create Calendar Events tied to your Profiles using drag and drop.