Performance Page: Visualizer presents only Sites related to Site Tile that has been selected after network has been visualised (investigation)

As a User, when I select a Site tile (on Visualizer) I want to visualize Supply Chain related to selected Site (upstream and downstream). Sites which are not upstream or downstream related to Site selected should not be presented (they should be removed from Visualizer and, if tis is not possible, then greyed out to merge with background grey colour). When I deselect Site tile selection all Sites are made visible again.