Objective Function Gradient Components in Optimization Module

Hi,
I'm using the Optimization Module with V4.2a to run a parameter estimation on a time dependent model.
The error output for the Levenberg-Marquardt algorithm doesn't reflect the convergence of the objective function making the optimality tolerance useless.
I'd like to have a look at the gradient components of the objective function with respect to the different Control Variables because the error estimation is based on them.
Unfortunately I haven't found them as accessible variables, only the objective function itself.
Is there any way of getting them?

Regards,
Johannes