How to modify srch_res_flistp at pin_mta_tune in the global flist?

Hi, my search flist returns an object with only one result, and that result contains some arrays. I want the main thread to distribute to the workers the arrays inside the result, and for that, I’m changing srch_res_flistp in the pin_mta_tune function. Unfortunately, MTA distributes the original result to the workers. How can I apply the changes made in pin_mta_tune?

Thank you