Use the First Order Hamiltonian, Left node to include additional first order left Hamiltonian terms. Also see the comment about the built-in factor in Second Order Hamiltonian (Equation 5-1).

In the Hamiltonian input table, use the lists to enter the Hamiltonian row index (m), Hamiltonian column index (n), and Right differential operator (j). Use the input fields to enter the First order Hamiltonian parameter, left (SI unit: 1/m) and the Description.