SCHUMACHER LD SHOCK CAP
 

Hi
Here is a simple modification to the shock cap, to stop the cap and top alloy collar from coming apart when changing the oil .
Simple just add a second bleed scew to the plastic end cap, drill the spare hole assemble the cap and collar add a second M2.5 X 4 cap head screw and the assembly stays together

how do you know which one to remove to bleed them?

Just drill both sides