The Modulus window can be used to enter maximum allowable shear forces and bending moments for each section. One or more points can be entered in this window. Allowable shear force and/or bending moment can be specified at each point. The modulus value is not currently used as deflections are not calculated.

To start a table of allowable shear forces and bending moments, bring the Modulus table to the front and choose New Modulus Points from the File menu with the Modulus window frontmost. The allowable values can be saved and recalled as text files by using Open and Save from the File menu. New allowable values can be inserted by selecting Add from the Edit menu and entering a longitudinal position as well as an allowable shear and/or moment.

Points may be added or deleted as required using the procedure described for the key points.

These allowable values are displayed as lines on the longitudinal strength graph.