Just to note I have figured out how to get the trigger text to work (i think a possible bug)
The shortcut that you run after typing the trigger text is by default CTR+J however this conflicts with another (cant remember which) so when i changed the shortcut to say CTR+SHIFT+J it worked.
STILL no fix on a KEYBOARD shortcut option though.
We currently do not support custom shortcut creation. But that has been requested by many users and hence, is in the pipeline. So, just in case trigger shortcut Ctrl+J conflicts with any other, the only way is to change the key mapping as you have done.
Adobe ColdFusion Team