The Node By Intersect tool allows you to create nodes when you are in the process of creating a new model or adding to an existing model. To access this tool, click ( ).
The Create Nodes by Intersect command is used to create a node at each intersection of two curves.
Select two curves that intersect. A new node will be created at each intersection of the curves.
Move your cursor to the model and rubber-band select, or click on the existing curves. Alternatively, type the curve number (e.g. C1) in the input box.