Store volFract to a variable in UEPACTIVATIONVOL?

Hello, I am trying to save the volume fraction of elements to a field variable or state variable. Is it possible to use predef(2,npredef,nElemNodes) or svars to store this information and retrieve it in USDFLD or FILM? I have tried to write sample outputs to access my SDV or FIELD variables in UEPACT but have not had success.

Abaqus ​​​​​​​