I’m very sorry, however, I cannot give more than one star. The use of mouse and arrows is as difficult as in a CAD-Program, but the presented information is for an 8 years old child. Moving the mouse with left click makes the picture wild dancing, it’s hard to get a proper picture position with the mouse action. As already mentioned, you will not get the information of the part where you will make a mouse click, you’ve to click wild around in the window and sometimes you will get an information of a computer part, which is far away from the click position.And the given information are very poor.