Symbols can represent a primitive device such as a resistor or a capacitor; a subcircuit libraried in a separate file; or another page of the schematic. This section describes how to define your own new symbols. To start a new symbol, use the menu command File=>New Symbol.
NOTE: Screen updates during symbol editing can be slow. If this is a problem with your video card, reduce the area of the symbol-editing window to speed up screen redraws and/or reduce the screen's color resolution. This will give better tactical response to mouse movement.