My current room has a 3 way switch that controls the bottom plug of the receptacle (bottom plug is controlled by switch, top is always ON). I want to do recessed lights in that room with no previous installed ceiling light. I looked at the wiring and is confused as there seem to be an extra 14/3 romex cable which is supplying power to another receptacle. So my question is, can I use the 2 bottom wires that is connected to the receptacle and pigtail them so I have a HOT, neutral, and ground. This way the switch will control both the lights and the plug?
EDIT: I just thought about something else, Since the top is always HOT can I buy a new receptacle and disconnect the two wires on the HOT end. This way the new receptacle will always be hot and I can use the 2 wires left on the bottom receptacle for the recessed lights? This way I can still use the dimmer switch for the lights.