quform_pre_display

add_action('quform_pre_display_1', function (Quform_Form $form) {
    // Custom code
});

function my_pre_display(Quform_Form $form)
{
    // Custom code
}
add_action('quform_pre_display_1', 'my_pre_display');

add_action('quform_pre_display', function (Quform_Form $form) {
    // Custom code
});

function my_pre_display(Quform_Form $form)
{
    // Custom code
}
add_action('quform_pre_display', 'my_pre_display', 10, 2);