Send Vertex Array to PShape

The new PShape features are awesome. Especially the adding of Vertices or loading OBJs. But what I am missing in comparison to the old GLModel class is the opportunity to send an array of vertices to it. Like the model.updateVertices(vertexarray)

Because I think sending the vertices one by one makes it too many calls. Especially when doing it dynamically in the draw loop. Did anyone has experience with it?

Thanks in advance.