Just booked my flights to BOG and back as well for December. Looking forward to trying out the SQ cabin. Why won't AC let us book J on the first leg (YVR to YUL) and PY on the next. I know we can book split cabins if you have a round-trip and book a different cabin for To and from for most trips. I know we can upgrade but that won't count towards SQD. 🥲 First world problems hahaha.
It's the same problem with the daytimer from Halifax to LHR - can't book the connection from YYZ in J unless using two separate tickets.