Add Point
Function Description: This tool allows the user to add vector points to objects.
Steps
1.Select a point layer, such as a surveillance camera point layer.
2.Click Add Point 
button in the Vector Editor, use the mouse to select a point in the point cloud, and a dot will be drawn at that position according to the current layer.
Draw point interface
Note: The geometric characteristics of the vector result must be consistent with the geometric characteristics of the layer to be added. For example, the point-like vector result must be added to the point-like layer, otherwise it will be prompted that it cannot be drawn. For the description of layers, see Layer Management