What do you mean "the ceiling to be changed"?Just today IB instituted this rule on equities due to it being forced onto them by the exchanges. If you want the ceiling to be changed, you have to do it PER ORDER by contacting IB support - no, I am not kidding, one order at a time like it's 1985.
It's downright absurd at this point. I'm all ears regarding workarounds to this pure malicious stupidity.