Get PolygonVertices after Edit Polygon

I’m creating a project modeling on runtime. This project based on the dynamicsdmcactor plugin Modeling tools editor mode, and with tutorial : The Interactive Tools Framework in UE4.26 (at Runtime!) — gradientspace.
I’m saving data of mesh about: polygonvertices. But when I use edit plygon tool, I can’t get polygonvertices back, when it update with this tool.
Anyone research same this tool may help me? Thanks

I would recommend taking a look at the geometry scripting plugin in UE 5

This video shows using geometry script at runtime

Thanks for your repply, But my object is DynamicSDMCActor that created by DrawPolygonTool. And I want to get Polygonvertices of Polygon Mesh after Edit Polygon