First, put the presentation slides in the playback state, as shown below!
Then, in the playback state, in the slide anywhere in the right mouse click, pop-up shortcut menu, the following figure!
As shown above, if you want to draw lines, connect circuit diagram and other operations, you can choose a pointer, such as ballpoint, felt tip pen, highlighter, and so on, and then directly click the left button to drag animation line!
In addition, if you want to change the connector color, please follow the image below to operate!
In addition, if you draw lines, connect the line more, want to clear, the operation is simply easy, you love how to do it, such as the use of "eraser" to clear, or directly erase all the ink can!