Domain, Boundary, Edge, Point, and Pair Nodes for the Transmission Line Equation Interface
The Transmission Line Interface has these domain, boundary, edge, point, and pair nodes available from the Physics ribbon toolbar (Windows users), Physics context menu (Mac or Linux users), or right-click to access the context menu (all users).
In general, to add a node, go to the Physics toolbar, no matter what operating system you are using. Subnodes are available by clicking the parent node and selecting it from the Attributes menu.
Select Edges for 3D models, Boundaries for 2D models, and Domains for 1D models. Points are available for all space dimensions (3D, 2D, and 1D).
For all space dimensions, select Points for the boundary condition.