Ceiling-fans & penetrations such as Exhaust Fans, Downlights & Chimneys can be created in the Visual view using the Ceiling Fan, Exhaust Fan & Downlight drawing-modes, with associated keyboard shortcuts "F" for ceilings fans, "X" for exhaust fans" and "L" for downlights.
You can toggle between the type of ceiling object to create using the Change Type button in the guide-box or the Tilde keyboard shortcut. You will notice that uncommon penetrations such as Chimney or the generic "Other Penetration" object will be shown as you cycle through the submodes, even though these objects do not have an assocaited left toolbar button or keyboard shortcut.
Place the fans or penetration in its location by left-clicking. Exit the drawing mode by right-clicking or using the Escape key.