No that's not what I am saying at all. Read my post again.
This is what you wrote: "They took the elevator up to the 5th floor where they were joined by Williams, who had just come down from the 6th floor."
Context matters Martin. I have read the statements of Jarman, Norman, and Williams. You made the statement, so were they on the 5th floor or not? If they were then they would not have had time to get all the way back down, outside, and come back in the back by the domino room for Oswald to see them 90 seconds later. Here is what you also wrote: " Jarman and Norman were actually outside the building to watch the motorcade pass by. Some ten minutes before the cars arrived they decided that they would get a better view from the 5th floor, so they went along Houston street to the back of the building and entered the shipping department, where they could have been observed by somebody in the Domino room. "
I am not disputing that they could have been seen by someone when they came in Martin, I am disputing it was Oswald and I am basing that on "your context". Are you saying that they were not on the 5th floor at the time of the shooting? You seem to have a timing issue here Martin.