[Q] Backing up my Hangouts SMS block list? topic

Hi, I use Hangouts as my default SMS app. I have generated a long list of blocked numbers in time. Now I need to clean reset my phone and I don't want to lose my block list. Is there a way to backup that list? Thanks.

[Q] Backing up Apps topic

If I was wanting to backup just apps and their data to restore after fliashing a new rom, what would I use? And is it even possible?