Grouping Lights

Is there a way to group lights so that if you edit one light, you edit them all? I apologize if this has been asked before, but I could not find it using the forum search.


To do this the lights will have to share the same datablock.
Select one of your lamps (RMB)
Go to the editing buttons (F9)
Select the datablock you want it to share.

Another easy way to do it is by duplicating your lamp with ALT+D, instead of SHIFT+D.