How to PIN CONVERSATIONS in TWITTER app?

so i just noticed this that there are now pinned chats in twitter so if you swipe right you can just pin conversation and twitter and you can pin up to six conversations in your for twitter messages so something like that and then of course i guess you can unpin it like that so just swipe right and then you will see this pin button on the left or swipe left and then you will see all the like mute report or delete so something like that that's a new feature i guess just update the two twitter apps or and then it should be available to you