I can’t so much comment on the V56 top case, but I would have to assume it‘s similar to the E52 Maxia I have...in order to install LEDs, there’s a total of 4 very small screws on the inside of the box in the region of the red lens. Take that out, and select new LEDs (I got mine from Admore lighting):
Here’s some disassembly instructions for the LEDs you hopefully will find helpful:
https://www.admorelighting.com/docs/ADML-LEDV56TTS.pdf
According to this PDF, there are 3 screws per side each of different lengths to remove the LEDs/ lenses