If user clicks on 2d window, change focus in the pipeline browser
This issue was created automatically from an original Mantis Issue. Further discussion may take place here.
If a user clicks in a 2d window, we should change the focus to the visible filter in the pipeline browser. An example is disk_out_ref.exo, plot over line, apply. Now, if you click on the 3d window, disk_out_ref dataset, focus moves in the pipeline browser to the exodus reader. But, if you click on the 2d viewport, the pipeline browser focus doesn't change.