Canadian users should take a look at the latest beta - Version 3.1.38. Until now, we haven't been able to click on a symbol and have it load into a charting program. This is changing - if you are a Disnat user for example, you will see that Disnat Canada has been added to the Symbol Translation drop down menu (found in the Set Up External Linking pop-up). What that means is that the .cat and the .cav change to .to and .vn respectively and you can see your Canadian charts.
So actually, if whatever charting package you are using has .to and .vn for the Canadian symbols, you can use the Disnat link now.