Shape Transform Tool

The square pointer controls straight lines, while the circle pointer controls curves.

Double-click to add a new square pointer. Double-clicking on a square pointer will add a circle pointer to control the curve.

Select either the square pointer or the circle pointer, and press the Delete button to delete the selected pointer.

If you want to cut out or merge paths, select the base shape, and then select the shape you want to merge while holding down Shift on your keyboard.

Finally, by clicking "Integrating paths" on the right-click menu, the path information will be integrated into the shape you selected as the base.