What did you do to the conference system?

What did you do to the conference system?
I"ve been using my friends list to announce my event for a couple years well they put a cap on how many you can put in a folder at once and have that still work. about a year ago so i split them up. now they did something new If I try to do the same thing I've been doing for a year. Half the time I get this session has timed out. How could it time out?
I just opened it.
So I frantically try to IM all the people it shows are on line in the folder individually and half those come back with this person is not on line at this time. I wonder how many that showed they we rent on line actually were? Also It now lists all the people in the folder that aren't on line right now. When I try.There is no option to only message on line users anymore? So now am I spamming every one of those offline people now? Probably. Anyway If there's a new hoop I have to jump through please tell me what it is. I hate to put my friends through me testing to see how it works now by trial and error. Do you hear me now. do you hear me now. I read the release notes I never spotted this new Feature?

Ok nevermind tested it. It gives you a list of who isn't online but doesn't send them any messages. And a few of my folders had over a hundred names in them so that must have gone past the limit.