I have some buttons in my editor toolbar that add an atom to the editor. Here's the code:
<button class="btn tag tag-info" {{action editor.addAtom 'message-tag' 'example'}}>example</button>
However, the button only works when the editor is actively focused. If the user presses a button while the editor is not focused, nothing happens. The ideal behaviour would be appending the atom to the end of the document.