Each of the elements comprising the section is defined in this part of the window. It features a series of tabs for quicker access to their definitions.

          The definition is done by station, indicating by lines up to which station each element is defined.

          In turn, each element to define has a series of buttons for typical tasks such as inserting, editing, deleting, etc.

          There is also the bottom middle button “Top View” which allows us to visualize a top view of the state of the section we are defining.

          Below is a detailed description of the definition of each element: