Select the ‘Structure Place’ button from the Linear Draft toolbar and follow the prompts.
At this point, you should select one marker.
After selecting the 1st marker point you will now need to select a 2nd marker for the 2nd mast. Left click to accept.
Left and right rail selection will define the orientation of the structure and its annotation box, therefore, the left and right rails must be chosen as if you were looking at the rails in direction of increasing chainage.
In the example below, the chainage is increasing from right to left.
Accept the rail selection by left clicking the mouse button. Once accepted, another prompt will appear asking you to select the right rail. The right rail for a Portal will be the rightmost rail of the last track that you want the portal to span.
Accept the selection by left clicking the mouse button and the ‘Create Structure’ form will appear.
Structure type 'Portal' will be pre-populated.
The ‘Create Structure’ form shows a view of the structure and displays boxes that require text to be added as well as displaying engineering values that can be edited.