Especially

You can use this function to edit any model (surface or point model). The function is identical to the function of the same name for insoles (see 3.5 3D modelling of insoles with GP InsoleCAD), but the operation is slightly different.

While holding down the left mouse button a rectangle around the area you want to change. You can then set the point of application of the deformation (green square) with Ctrl + left mouse button anywhere within the rectangle and drag with the mouse.

If you release the mouse button, you can move the point 1 millimetre in the specified direction using the V/H (front/back), I/A (inside/outside), O/U (top/bottom) buttons (see Fig. 28). Only the currently selected model is moulded. If changes smaller than 1 millimetre are required, the following key combinations are possible:

Direction button (see Figure 28)	Changes by 1 mm
Shift + direction key (see Figure 28)	Minor deformations
Ctrl + Shift + direction key (see Figure 28)	smallest deformations