The tool allows you to set the center point. The model rotates and scales with respect to this point. This may be necessary if the model is cut off with cutting tools. The tool has two modes: auto and intaractive (manual). To select mode click on the arrow on the right side of the Centrate button on the toolbar and select mode. Current mode is marked with check marks.
To activate the tool click on the left side of the Centrate button. If auto mode is selected, the centering will be performed immediately after the tool is activated. If interactive mode is selected, the cursor takes the form of a crosshair. Set the center point by clicking on it the left mouse button.