With Hubbub Pro 2.28.0 or greater, you can Customize the Save This form even further using filters.

All filters accept a string unless otherwise noted. Additional arguments include the current post ID, and a boolean for whether or not the current Save This form was created using the shortcode.

Here is a snippet example to look at…

// Use a different heading based on post category

function filter_hubbub_save_this_form_filter_heading( $heading, $post_id, $is_shortcode ) {
    if ( in_category( 'BBQ Recipes', $post_id ) ) { 
        $heading = 'Save This BBQ Recipe';
    }

    return $heading;
}
add_filter( 'hubbub_save_this_filter_form_heading', 'filter_hubbub_save_this_form_filter_heading', 10, 3 );