In Lumen Builder, how complete is the mapping between Lumen and Panel objects? Is there a list / documentation of this?

[Coderambling]

Is the above documented somewhere? And is the mapping updated as Panel versions change?

In the Lumen Builder GUI, are all of the components of Panel available to select and configure as part of a dasboard being built using the Lumen GUI?

Or is it a subset, that is documented somewhere?

So which of the Panel objects like the various Panes, widgets like pn.colum, tabulator, layout components like GridSpec, GridBox, etc., as listed in the link below?

Are they available for selecting in the Variable Editor / Layout Editor in the Builder?
https://panel.holoviz.org/reference/index.html