Your keys. Your fingers.
Choose a finger, then click the keys you use with it. Assign everything away from your little fingers if you prefer.
Assignments are saved on this device and apply to all your recorded key data.
Sign in to save finger assignments across devices.
Select a key or finger to inspect it.
Hover or focus a finger to highlight its keys. Edit assignments to match how you type; Space uses your right thumb by default; you can reassign it. Timing colours compare your keys within the selected data.