The Tools toolbar offers functions that are specific to particular preset templates. The tools will only be active if they work with the template currently in use.
The Front View and Rear View operate in drawings based on the Rack Layout and Pictorial Schematic templates while the Side View is only available in Rack Layouts. The Connector Dot is only available in Block and Pictorial Schematics and can be used to show junctions in signal paths.
The view tools work by revealing and hiding specific layers and, when swapping between front and rear views, mirror the drawing.