is it possible to flag a post answered/unanswered?
 

i would like to flag certain posts that remain unanswered, is there a way to do this?

example.

i have a staff of 25 mods, all of which answer questions from our members...
i would like to mark certain posts unanswered, so when the team comes in, they can go straight to those unanswered questions, instead of having to sift through every single post that is flagged unread by them...

so i want to add a second form of flagging posts, flagging them answered and flagging them unanswered... is this possible without an add on?

thanks for your valuable time and energy.