Hello, free modeling can be operated by pressing Ctrl + left mouse button to box select (can also be combined), and then click on the Move at the top of the interface. (Accurate movement parameters can be entered in the lower left corner)

To copy the free modeling shape, you can click on the well-combined model, or press Ctrl + left mouse button to box select. After clicking Move, press the Shift key. If a "+" icon appears next to the mouse, it indicates that copy and move can be performed.