Made a very last minute booking for YUL-ZRH and ZRH-HKG.
For YUL-ZRH I was able to grab 6A through the Air Canada OLCI.
For ZRH-HKG it looks like all window seats are filled (can't check in yet), are there seats in particular that are blocked and that I might have a chance of grabbing at the counter or OLCI? For now I have 8G, which isn't ideal. I also have the choice of 5G.