Used to edit the appearance of the nodes in your model. When you create a style, you specify how all node types will appear in your model. If you need to change node appearance temporarily, you can copy a style that is close to what you need, edit one or more nodes, and save the style to a different style name. This allows you to keep your default style (collection of node settings) if you want to return to it later. There is no limit on how many node styles you can have in the Node Symbols Style Manager dialog.

If you select the pie symbol as your node symbol, you can select a color (outline) and a fill color. There are six pie wedges, one for each restraint direction. The Node Type field describes the six restraint directions. The pie wedges will be filled in with the fill color, depending on the restraints.

If you are creating a new style name, the Style Name field can be edited.