i have a plan! call a sparky.... or do this.
you need to pinch a neutral from somewhere, your live is already at the switch.find a cable which goes from one light to another. make sure the flex off your spot lights can reach the junction box. cut it and strip the wires so they can contact eachother in the junction box. (jb) you will need a 20amp jb with 5 terminals. or a 30 amp jb and a connector block. get enough 1.5mm twin and earth cable to go from the jb to the light switch.
you should have 4 cut cables at the jb
the cable you cut going from light to light
are live neutral and earth so join them together in separate terminals
put the brown from the new flex with the blue from the new switch cable in its own terminal
put the blue from the new flex with the blue neutrals from the original cut cable
finally put the brown from the new switch cable with the brown lives from the cut cable.
make sure the terminals are fairly tight and secure. pull the cables to make sure.
screw the lid on and sort the loft insulation out. my worst nightmare!
once you have the cable at the new switch and stripped. connect the green yellow wire to the other.
two switches. 2 cables. couldnt be easier really.
first switch put the brown in common or c.
then blue in L2
next switch put red in common and black in L2.
nearly forgot the earths. connect them in a terminal. terminals should be used.