I got 100 nodes. They all have Term reference field. 50 nodes are set to term 'A' and other 50 to term 'B'. So with that it helps me to filter those nodes via Views to display A nodes in one page and display B nodes in other page.
So now there's an update needed to be done. All those 100 nodes has to have a new term selected 'C' (A and B stays selected as it is). So all A's has to have now C and same with B's.
So how do I do that instead of going through all 100 nodes single by single and selecting it manually?