Hi, 

I am trying to create a new field type.

It should function the same as the existing text input field. However, I am not use how to set this up.

I am looking at the code formidable provides and it is simple to add the field, but it has not text input nor a read only function.

https://formidableforms.com/knowledgebase/add-a-new-field/

add_filter( 'frm_available_fields', 'add_basic_field' );
function add_basic_field( $fields ) {
    $fields['new-type'] = array(
        'name' => 'My Field',
        'icon' => 'frm_icon_font frm_pencil_icon', // Set the class for a custom icon here.
    );

    return $fields;
}

Any help would be appreciated. Thanks!