That would be needed for design like https://wiki.ubuntu.com/Bluetooth?action=AttachFile&do=get&target=phone-bluetooth-pair.png
The pin code are usually digits only but the specific allows alphanumeric chars and some device use letters, so ideally we would have a number/pin type of keyboard with a way to switch to full layout for those cases
That would be needed for design like /wiki.ubuntu. com/Bluetooth? action= AttachFile& do=get& target= phone-bluetooth -pair.png
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The pin code are usually digits only but the specific allows alphanumeric chars and some device use letters, so ideally we would have a number/pin type of keyboard with a way to switch to full layout for those cases