New effect instance should always be created on the center of the 3D view

If user have created a new project and then creates a new effect instance, the effect will be created on the center of the 3D view.

But if user have drag and dropped an effect somewhere else in the 3D view, deletes it, and then presses the "Add an instance" option, the effect will be created to the location, where it was dragged before.

It could be better, if the effect is always created on the center of the 3D view, when user presses the "Add an instance" -option

See video for better understanding:

qtdesignstudio_vffj3bcj3e.mp4