Updating Johnson Cook Parameters using field variable

Hello,
I am using Johnson Cook strength model to simulate steel. I am interested in updating my Johnson Cook strength parameter A using a field variable as (residual strain). My intention is to obtain the plastic strain in subroutine VSDFLD and calculate the residual strain using plastic strain. I store the residual strain in field variable FV1. 
Hence I need to provide plastic property dependencies in my input file as 
*Plastic, hardening=JOHNSON COOK** A,   B,              n,        m,         Tm,         Tc,   FV1 2e+07, 1.554e+08,      0.34,     0.912,     1520.,      900.,
However I am unable to add field variables as FV1 to Johnson cook model using CAE.

For an plastic material with isotropic hardening I could do this in CAE as
*Plastic, hardening=Isotropic, DEPENDENCIES=1**     Yield Stress [MPa], Plastic Strain,   FV1     198.8e+03,           0.01,      , 0.00000     172...4e+03,           0.02,      , 0.01793     168.7e+03,           0.03,      , 0.03942     166.8e+03,           0.04,      , 0.06155     167.2e+03,           0.05,      , 0.08409     166.8e+03,           0.06,      , 0.10747

I would be very grateful for any help in this regard.
Thanks,Shouvik