[QDS FlowView] Adding Flow Items

https://doc.qt.io/qtdesignstudio/studio-flow-item.html

> If you imported your screen designs from a design tool as individual components (.ui.qml files), you can use them as content for flow items. The imported components are listed in Components > My Components

how to "use them as content for flow items"? please add the detailed process.

 >To include another flow view into a flow view, select the UI file (.ui.qml) that specifies the flow view in the Loader source field.

need to introduce the use case of including another flow view into a flow view.
and the current page is talking about FlowItem, suggest putting this topic to FlowView.

the attached image seems not related to the article.

how to add the created the FlowItem into FlowView?