Use action hook wpda_before_simple_form to add HTML and JavaScript before a data entry form. Argument $self contains a reference to your simple form instance, which allows you to interact with your data entry form through public members and methods.
function myform_elements( $self ) {
// Add you HTML and JavaScript here...
}
add_action( 'wpda_before_simple_form', 'myform_elements', 10, 1 );
IMPORTANT message for free users with version 5.3.9 installed
WP Data Access version 5.3.9 is not seeing new updates in the plugin page. The latest version is currently 5.3.15.
To download the latest update, please follow these steps:
Deactivate and delete version 5.3.9. This will NOT delete your data, but if you’re worried, you can also simply deactivate version 5.3.9, and then rename the plugin folder temporarily via FTP.