Open UI View

Opens the ui_view whose viewId this action names.

Field	What it does
viewId	The identifier the view declares.

A view that does not exist is reported in the log rather than opening a blank screen: from the player's side an unopened menu and a broken one look the same, so the difference has to be written down somewhere.

Opening a view while another is open replaces it, and no arrival animation plays — moving from one screen to another is not entering the interface.