Click the Single Secondary Steel Beam icon from the ribbon menu.
A single secondary beam toolbar will be opened.
Locate the first point above the beam where you want the secondary beam to begin.
Click the profile list in the steel beam toolbar and select the profile from the list.
Your secondary beam will move with the movement of your mouse.
You can draw a straight or perpendicular edge by pressing the shift key on the keyboard.
By pressing the spacebar, you can define your secondary beam by holding it from different points (lower corner, middle or upper corner). Every time you press the spacebar, your mania will change.
Make your second point by placing the cursor over the other beam. The program will create a preview of your next beam.
Press esc to exit the command. Your single secondary beam will be formed.