I want to manually sort photos in an Event. Following Apples help you should select Photos from the Source List. Then View>Event Titles and finally select View>Sort Photos>Manually. When I get to the second step you see all the photos in the library with a line separating events, but when you do the third step the window reverts to show all of the photos in the Library with no way to see which event they are in.
Light bulbs you shouldn't buy
There are plenty of dimmable LED light bulbs, but make sure you don't buy the ones that flicker when you dial them down.