An easy way to add the bind function would be to drill four holes in the case (two mounting holes, an LED, and a push-button hole).
In an effort to keep the case as original as possible I opted to try and hide the "bind-button". The existing (but now extinct) RF-Module case looked to be a convenient spot for a hidden bind-button. C&K #8531MZQE2 was a convenient miniature push-button for the job.
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