Show Meeting Controls to Participants

I used to be able to show my personal meeting controls to my participants (toolbar, workplace app, etc.).  This was helpful when training others to use the platform.  I keep the setting to "always show meeting controls" turned on in the workplace app so that I see the controls, but there used to be a second setting in the web interface that would show the controls to my participants.  I can't find that anymore.  Has this function been taken away?