key 4dKey interpolation Auto tangents A, T 1 Break tangents B, T 2 Zero angle (tangent) 0, T 3 Zero length (tangent) L, T 4 Clamp C, T 5 ar ALT + L, T 6 Step ALT + T, T 7 Soft ALT + S,Frank Sutula profile picture. Frank Sutula. 4d. · Brittany Saucier and 10 others · 11. 2 ; Frank Sutula profile picture. Frank Sutula. 4d.