Just a tip if anyone wants to adjust a odd column group which contains a lagging image/container that appears to the far left.
In the Material Portfolio Project Template selecting the Projects with Sidebar page one can add the class to the last (7th) container "offset-md-3" which will center the last picture in the medium view. Since this setting bubbles up then add also the class "offset-lg-0" to re-position it on the third row large and on up.