There is a question asked on a Facebook technical group on how to switch on and off 4 bulbs individually and together. I thought a bit about it and decided to suggest a relay based solution. Relays are very popular nowadays with household lighting especially with chandeliers which have several modes of operation. Here is my suggestion. If you have any question, please ask.
When you switch on S1, it will light up all 4 bulbs irrespective of the position of other switches. When S1 is off, other LEDs can be switch on individually. Please be sure to use 230 DC relays, or else it will become complicated to use an additional step down unit. Please use a 1000uF, 230 VDC cap after the bridge for smoothing. May be use of diodes to cut off back EMF would make the circuit complete as well. Sorry being fast at designing this. You are free to do any improvement for this circuit yourself under one condition -> safety first.