Use this option to define the basic parameters for extreme sections (both beginning and end). A group of tapered sections is created automatically and a constant inclination of beam chords is determined. Additionally, by introducing the DH increment, the value of the height of the extreme sections is increased during the process of creating successive members of the group. The Hmax value is the maximum height among the generated tapered sections. When designing a tapered beam, sections from the group are applied successively to a bar to check whether they satisfy the code-defined requirements. The procedure is repeated until a group member that meets the code-defined conditions is found. If it does not find such item, then, it displays results for the strongest among the sections belonging to the parametrized group.