There are two lights in the room, the bedside lamp, the room lamp wants to be controlled separately,

Then it is necessary to use two switches to achieve the function of separate switches. The two switches can be installed in a place that is convenient for you. The switch is single-pole single-throw, and only needs to control the live wire in each of them.

Oh, I seem to understand what you mean, your current switch is a single-open and dual-control switch, right? You are all confused by you. To do what you said, you can only say that you can only say that you can wear a dark wire of live wire to the switch at your bedside, or pull an open wire from the nearby plug board to the switch.

If you are willing to do any of the above and do not understand, please continue to ask.

Draw you a wiring diagram where all three lights can be controlled on both sides (doorway and headboard). You can buy two three-position dual-control switches, (the price of the single-control bedside lamp you ask for is about the same, and the wires used are also about the same) See the figure below: one for the door, one for the bedside.

It is relatively simple to get a two-open single control switch, the bedside lamp and the room lamp are controlled by a switch, and the wiring is also simple; The schematic diagram of the double-open dual-control switch is as follows.

It can be seen from the schematic diagram that the two lights can also be controlled separately, that is, the two short wires in the middle are removed, and they can be connected to the bedside lamp and the room lamp respectively, which is equivalent to using the double-open double-control switch as a double-open single-control switch.