Thanks for link.. thought can get it locally. You try first and let me know of the outcome..
I also thought the DSC button was hollow as well. As you see the DSC and Shade button are located on the wrong side or further away from the driver. Thought i could reverse it to be nearer the driver but gave up after I open the module.
for the older model with DTC, the button is only one piece and is hollow. I saw that on Thomas E46/Lifestyle.