Grease Pencil - Convert/Trace Stroke to FIll

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Implemented in Blender v3.4.1 as [EDITMODE]->Stroke->Outline

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After applying thickness to stroke vertices with the GP thickness sculpt tool (or a Polyline with a Thickness Profile), it would be useful if there was a command to convert the stroke material to a fill material.

i.e. [EDITMODE]->Stroke->Convert Material->Fill or [EDITMODE]->Stroke->Trace Stroke->Fill

The logical extension of this idea wold be to convert from Fill to Stroke as well.

I realize that there is the Outline modifier that will do this by moving the stroke to a temporary layer and applying the outline modifier influence to that layer. Perhaps this can be automated with a python macro to create layer, move selection to that layer, apply Outline modifier on that layer, then merge that layer down.