[OE-3861] Use selectors to avoid disabling/enabling the wrong buttons.
[OE-3861] Use selectors to avoid disabling/enabling the wrong buttons.

FiviumAustralia/OpenEyes,FiviumAustralia/OpenEyes,FiviumAustralia/OpenEyes,FiviumAustralia/OpenEyes,FiviumAustralia/OpenEyes