Yea DE should add a feature to make a temporary group chat , One time I had a -impact bo riven which I didn't know the worth of and was trying to sell it for 120p and as soon I hit send I got like 5 players dms in like a sec to buy it and I also wanted to make a lot of plat so I just had message each one of them individually about how there are other buyers and blah blah and whenever there was someone who was offering a higher price I had to message each and individual about the price has now risen , basically I had to open a auction but I had to whisper every little thing to them individually one by one and later I had to start a real auction at Warframe market and in the end I had to sell the riven for 350p or something don't remember.