2D Tracking - Nuke 101: Professional Compositing and Visual Effects - page 213

The result of the Flare node should look a lot like FIGURE 5.11 .
Figure 5.11. The flare after treatment.
Now use this Flare to place three more flares in the shot.
22. Copy Flare1 by clicking it and pressing Ctrl/Cmd-C.
23. Make sure Flare1 is still selected and paste another flare by pressing Ctrl/Cmd-V.
You want to move the location of Flare2 to the second candle from the right. This
can get confusing because when you paste a node, its Properties panel doesn't
automatically load into the Properties Bin, so moving the on-screen control now
moves the position for Flare1. You have to be careful which on-screen control
you're using.
24. Close Flare1's Properties panel.
25. Double-click Flare2 to load its Properties panel.
26. Move Flare2's position to the second candle.