How do we enable the small triangle bottom to hide/show the filmstrip for non-Moderators

Hello everyone, and my apologies if this has been answered before. I cannot find it.

How do we enable the small triangle bottom to hide/show the filmstrip for non-Moderators?

It’s enabled by default in Speaker view, unless explicitly disabled through config or some custom code.

I do not see it in the Speaker View when I’m a non-Moderator. I can see class=FilmStrip_Toolbar is missing in the inspector when I’m a non-Moderator. Is there a parameter in the config that can enable it for Moderator and not for non-Moderator?

FYI: for everyone’s benefit. To enable the little triangle arrow to enable | disable filmstrip view from with in iframe API you must add ‘filmstrip’ in the TOOLBAR_BUTTONS section if you have chosen to select others; Example:
TOOLBAR_BUTTONS: [
‘microphone’,
‘fullscreen’,
‘hangup’,
‘profile’,
‘chat’,
‘settings’,
‘videoquality’,
‘desktop’,
‘tileview’,
‘raisehand’,
‘filmstrip’,
],