Hello I'm embedding a liveboard, and I want to allow my users to add a new visualization. I'm currently doing it with an "Add Chart" button on the host that redirects to a new page with Search embedded. The user can use that to build a viz and add it to the liveboard with the Pin button. I would prefer to have this "Add Chart" button live within the liveboard's "More" menu though. Is there a way to make this happen? I was thinking custom actions, but those appear to only work on a visualization level and not the liveboard level.