Use RESET option in BROWSER TAB . this will clear cookies but cache will be still present. You can also make a profile and save it for further use. Let us know if this works for you.
@DuckDuck Thank you very much. Besides blocking libraries, what else can be done to optimize BAS and reduce RAM and CPU usage? Because the tool I'm working with is expected to simultaneously scrape 20-30 news pages.
If your cookies in same format as BAS, you just read it from file to variable and go Network-load cookies-set cookies for browser. If format of your cookies not compatible with BAS, compare and convert all your cookies in right format