Use the Bending schedule fields in Rebar shape manager to define the content for templates and reports. Each of the Bending schedule fields cells can contain a shape property or a formula.
Example
Formula is L1+L3+L5-2*DIA
L1 , L3 and L5 are the leg lengths measured from outer edge to outer edge
H1 is the total width
to achieve H1 : L1+L3+L5 minus 2*bar diameter