XF 2.2 Can we customise the new editor toolbar?


The new editor's very slick, but my users can't find the 'more options' dots to access smilies, quotes and video embeds. Is there some way I can edit the toolbar, please, to make more of these visible?

(Actually, I can see there must be, because you've done it here. But I've searched the admin area for 'editor' and 'toolbar' to no avail. How's it done?)