A very similar question was asked in https://mountainutilities.eu/comment/123#comment-123.
So the answer is no: when a button is switched on or off, its LED follows suit, and as far as I know there is no way to prevent this (apart from modifying the BCR's firmware).
A very similar question was asked in https://mountainutilities.eu/comment/123#comment-123.
So the answer is no: when a button is switched on or off, its LED follows suit, and as far as I know there is no way to prevent this (apart from modifying the BCR's firmware).