How to edit a smartsolid as needed?

Hi,

After I draw a pyramid solid, I need to change the position of some vertexes to make them to fit with the pointcloud. But the related vertexes are moved as I changed the first one. How should I do to get the correct result to make the pyramid match the pointcloud?

Before edit the left corner vertex to fix the upper pointcloud

After edit

Regards

Koalar Q