Step 8: We will need to delete the poly facet facing the finger so we can bridge the points on the cloned finger to the rest of the hand. Select it and hit Delete.
9. Activate Points select. Right click or Command-click in teh Editor window to bring up the structure tools and select the Bridge tool.
This let's you draw lines between points and attach them. Click on a point and draw a line between two unattached points. Nothing will change save for them being highlighted, but when you draw a line between neighboring points a poly facet is created.