OS. To generate the frame members

Type the following commands to add the columns:

        'Columns
        n1 = 1
        n2 = (n1 + clmn +1)
        For k = 1 To (clmn + 1)*row
            geometry.AddBeam n1, n2
            n1 = n1 + 1
            n2 = n2 + 1
        Next

Type the following commands to add the beams:

        'Beams
        n1 = 1
        For k1 = 1 To row
            n1 = k1 * (clmn + 1)+1
            n2 = n1 + 1
            For k2 = 1 To clmn
                geometry.AddBeam n1, n2
                n1 = n1 + 1
                n2 = n2 + 1
            Next
        Next

Save your macro by either:

click the File ribbon tab and then select the Save tool in the backstage view

or
click the Save tool in the quick access toolbar

or
press <Ctrl+S>

Your frame macro is now complete. You are ready to test the macro to check your code.