[Gretl-users] Simulated annealing

Hi, to estimate PSTR models: http://ideas.repec.org/p/uts/rpaper/165.html a concentrated SSR must be minimized and the authors suggest to choose the starting values by means of simulated annealing. Reading the manual, I discovered that gretl is already able to use simulated annealing to adjust the initialization in case of ML estimates in the restrict command via the option --jitter (btw: such option is not reported in the description of the command in the command reference). Is there a way to use such method in gretl for initializing a generic function to be minimized/maximized? Thanks Giuseppe