Selecting this function opens a window in which the user can enter a minimum
separation between nodes. On clicking Find all unconnected nodes closer
than the specified distance apart, will be listed. The list shows the element and local node numbers of each pair of nodes violating the specified criterion. Clicking on
any position in the list will highlight that element and node in the Graph Window. The exact co-ordinates of the node are shown in the ``Co-ordinate boxes'' in the Information Bar. This enables the user to determine the exact difference between all non-connecting nodes. The appropriate co-ordinate corrections to the non-connecting nodes must be performed by the user (using the ``Edit Major Element'' feature).