Selecting edges/extracting coordinates from geometry created in Dynamo

I wonder, is there any possibility so select particular edges of geometry created in Dynamo, to create new geometry based on those lines (AD1)? I want to create geometry which follows particular arcs (geometry was created by arc)

Additionally, is it possible to select points of geometry face (AD2, endpoints of lines) or extract their xyz coordinates?

Well you have the topology.edges and topology.vertices nodes, but you have to filter out the ones that you don’t need.
If you want to select them manually you can import the geometry in Revit and use Select Edge or Select Edges.

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Thanks for the info