Remember when you're at the tickets view page and you mark several tickets for a certain action? (E.g. closing, bulk reply, solving, adding tags, assignee, etc.)
So, you currently can't send bulk canned responses from that editor.
When you press /c to show up the canned responses (or even the canned responses pane), it's not there.
Please add the /c command for canned responses for certain bulk scenarios.
I've been getting lots of emails asking for the same thing, and sometimes sending them in bulk actions requires me to open an older ticket to grab the previously saved canned response, and so go back to the bulk actions editor again.
Oh yeah, don't forget to append the footer to that editor too. It will save me a lot of time instead of copying and pasting things from other places rather than opening old emails to gather the proper information to be sent in bulk actions.

