Sometimes it is useful to hide nodes in your net, especially when working with large nets.
How to: Select the node(s) you wish to hide and choose Style → Hidden.
Example: the result will look like the below.
To reveal a hidden node(s):
1. Click down on the net background (i.e. not on a node or link), and then drag with the mouse so that the dashed line rectangle goes over the node that was made hidden. The node will then be selected (even though you can't see it), and you can choose Style → Default from the menu to "bring it back" (available from both the overhead and right-click menus).
2. Alternately, if it won't harm any other nodes, you can just do Ctrl-A to select all the nodes, then choose Style → Default from the menu.
3. If hiding the node was the last action you performed, you can simply click the Undo arrow or do ctrl-z.