Once you have selected a room by searching and then clicking on it in the left list click the top arrow button. The room will now appear on the right. Then click the 'Ok' button
8To save you will need to click 'Export', then 'Use a predefined layout (Room Timetable)' (Should be automatically selected). Then click 'Save to file' and then click the "..." icon and choose a folder location. Then click 'Ok'