Would be curious if it'd be worth it to add either a sixth button on the side to be pressed by the thumb, or to add something like a 5-way switch [1] to the top

Would be curious if it'd be worth it to add either a sixth button on the side to be pressed by the thumb, or to add something like a 5-way switch [1] to the top. You wouldn't have to use all 5 ways, and it'd greatly increase the amount of characters possible, potentially allowing whole words (and, the, patient etc) to be hit by buttons. [1] https://www.adafruit.com/product/504 https://www.adafruit.com/product/504