"Remember me" option for users

Hello,

For my application i'm going to implement a "remember me" option so they don't have to login on each visit if the page/browser closes.
I believe with sessions if the browser is closed the session get's lost if i'm correct, is there a way to expend this session on update/expire?

Can we for example:
-------------------------------------------------------------------------------------------------------------------------------------------------
Override config settings, know how this works, if the remember me is set, if not use default settings on this?
-------------------------------------------------------------------------------------------------------------------------------------------------

Application info:
CI 3.2.0-dev with PHP 7.1 enabled


Kind Regards