K one more question about A6 before I commite my project too it. This is simular to the IK question I asked before but diffrent LOL. does the engine allow modification of bone rotations in relation to thier keyframed rotations in real time.

For example. Lets say I have a character animated so he runs with keyframes. can I make lets say the spine twist 10 deg to the left in relation to its keyframe.

so if keyframe 1 set the spine to -5 deg, keyframe 2 set the spine to -10 deg, and keyframe 3 set the spine to +5 deg, could I add -10 to the vaules so keyframe 1 would = -15 deg, keyframe 2 = -20, and keyframe 3 = -5
?