Go to Element Tools > Element Editing.

Select Composite.

The LS-PrePost Composite module operates on only one part at any given time.

Click PID:.

Select (pick) the part you will work on in the graphics region.

There are three physical layers in the structure, so insert three plies by clicking three times on the Insert button.

COMPOSITE_LONG option uses one ply per card and is recommended when using dropped off plies so that zero-thickness plies easily can be created.

Activate the Use COMPOSITE_LONG toggle.