FAssetEditorRequestCloseEvent

Event called specifically when an external system requests an asset editor to be closed (e.g by calling [CloseAllAssetEditors()](API\Editor\UnrealEd\Subsystems\UAssetEditorSubsystem\CloseAllAssetEditors)) If you want an event that is called anytime an asset is removed from an editor (which may or may not close the editor) - use [OnAssetClosedInEditor()](API\Editor\UnrealEd\Subsystems\UAssetEditorSubsystem\OnAssetClosedInEditor)