User inputs and outputs as aliases
The title and units of an input or output node are obtained from the original node. To edit them, edit the title and units of the original node. If you edit the title or units of the original node, the input or output node’s title or units changes to match the original.
By default, an input or output node shows its original node’s title (label) in the original font, with no node outline or arrows. The node takes its color from its original node when the node is created. Later changes to the original node color do not change the color of the input or output node.
To change the appearance of an input or output node alone, use the Set Node Style and Show Color Palette options from the Diagram menu (see Node Style dialog and Recoloring nodes or background). When you use these options to change the appearance of an input or output node, its original node does not change. Similarly, using these options to change the appearance of an original node does not affect its previously created input or output node.