ASD-A2-E Relative Motion

[indexy]

Hello,

I have an ASD-A2-E drive which I am running in profile position mode through a custom EtherCAT master.
I am able to achieve relative motion by setting bit-6 of the control-word (6040h). However, the motor is rotating relative to the internal position demand value (6062h), which makes the motion "additive" rather than relative.
Is it possible to make the motor rotate relative to the current actual position (6064h)?
I see in the manual that the drive has a "positioning option code" (60F2h) but there aren't any details about it.