For those on Linkedin, the structural superintendent is now providing regular updates with photos:
https://www.linkedin.com/feed/update/urn:li:activity:6360230838113759232
"VANCOUVER HOUSE: as the tower rises and the floor plate steps east floor over floor, lower down in the tower we would take out the tables you see and modify them in length to suit another 5+ floors, when they were put back in place, many of the tables cantilevered beyond slab edge sometimes 1/2 the length of the table , so anchoring the inside end of the table down to the floor below was a requirement , structural steel beams running the length of the table prevented deflection at the cantilevered end while able to take the downward load required to anchor the table to the floor below, aluminum could not take this downward load, now as we are on 42, we have enough of a floor plate for Most of the table to sit on, and slowly to the east we will change out the tables shown and replace with longer conventional tables. The last few uses of such tables is shown."