Ghx and ghu

Hi all
i have a question regarding the ghx and ghu matrices.
are these updated at each step?

say at stoch_simul, the parameter values calibrated , will yield us the ghx and ghu matrices in the model solution.

next after mode_check, the matrices are now , made using parameters set at the posterior mode.

after the MCMC , the matrices are computed using the posterior means.

i hope the question is clear. i think the matrices are updated ( i remember MJ’s reply to a question on variance decomposition at the posterior mode and means by using stoch_simul after the estimation command) . i am sure that the matrices are updated for calibrated values and for the mode , but i dont know if it is done for the posterior mean. i am not sure.
this is to confirm.

cheers
reuben