Use the First Order Hamiltonian, Right node to include additional first order right 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 drop down menus to enter the Hamiltonian row index (m), Hamiltonian column index (n), and Left differential operator (i). Use the input fields to enter the First order Hamiltonian parameter, right (Unit: 1/m) and the Description.