I have a single switch for ceiling fan and overhead light. I’m looking to wire to a two switch plate so I can run independently.
This is the diagram that was used to confirm my same need. You may need to get some 14-3 or 12-3 wire to rewire. That is what I had to do to bedroom ceiling fan because it was wired with 12-2. This photo helped me better understand along with detailed instructions. You will need the 12-3 wire from the switches to the ceiling fan, only. Plus, this diagram assumes the power to the ceiling fan originates from the switch.