No I'm using the new desktop platform. I came from TOS and imo IBKR desktop is superior. As a broker IBKR also has the lowest exchange rate when trading US stocks with Cad cash...I don't even bother doing the norbit gambit. https://www.interactivebrokers.ca/en/trading/us-stock-trading-costs-for-canadian-resi.php The charts are trading view as well ..no comparison out there and I have tried multiple broker platforms.
Why trade back to CAD once you are in USD? Does yout EW see the CAD gaining value, it's been in a down trend. Have you seen who is running the country?
IBKR is a lousy broker for advisors. IBKR will allow your clients to skip paying you by cutting you out and can get away without paying you a single cents despite all the agreements.