Retirement tax questions

When I tried to go through the steps it removes the option entirely after giving a message about it "not being ready" or something. I think this will be like last year where it will take them weeks to get the proper forms loaded to accommodate the 2nd year of the 3 year split. I am waiting for an answer as well. There isn't anything that I can find in support that specifies when or how so hopefully someone will reply here to tell us all.