Follow the mouse to automatically measure the display edge or face to face distance. Press Shift to measure the spacing between the sides. Instead of using native tape tools, you can know the length of an object without measuring it.
Trena Laser（Trena Laser）动画教程
Follow the mouse to automatically measure the displayed edge or face to face distance, and press Shift to measure the distance between the sides.
太方便了！！！！！