Bridge enables you to create connections between unconnected surfaces. In point mode, you can create polygons by defining new polygon edges. To define a new polygon edge between two points, Drag & drop from one point to the other. A highlighted preview will appear to indicate where the new polygon will be created.
In edge mode, you can create a new polygon between two edges by dragging and dropping from one edge to the other. As with point mode, a highlighted preview will appear to indicate where the new polygon will be created.
In polygon mode, before you use the Bridge tool, you must first select the polygons that you want to connect. Then, using the Bridge tool, Drag & drop from one side to the other. A highlighted line will appear to assist you.