altoin

<?php //MAKE SURE TO REMOVE THIS WHOLE LINE FIRST
add_filter( 'gravityview/template/text/no_entries', 'modify_gravityview_no_entries_text', 10, 3 );
function modify_gravityview_no_entries_text( $existing_text, $is_search = false, $context = null ) {
    $view_id = $context->view->ID;
    if($view_id == 8) //Change this number to your View ID
    {
        if( $is_search ) {
            $return = 'Your search came up empty! [Use your own new search text]';
        } else {
            $return = "There just aren't any results! [Use your own text]";

altoin

<?php 
add_filter('gravityview_entry_slug', 'change_the_gravityview_entry_slug');    
/**   
 * Change the /123/ URL piece to /myslug/  
 * @param  string $slug Previous slug, default: "entryId"   
 * @return string           Change the new endpoint to "myslug"   
 */  
function change_the_gravityview_entry_slug( $slug ) {
      return 'myslug';  
}

altoin

<?php
/* Rename the CSV filename.*/ 
add_filter('gravityview/datatables/button_csv','gravityview_csv_export_settings', 10 ,2);
function gravityview_csv_export_settings( $button_config = array(), $view_id){
    if($view_id==19)/* You must pass a Valid View ID here for this to work*/
  {
    $button_config['filename'] = 'my_csv'; /*please change 'my_csv' to your preffered filename*/
    return $button_config; 
  }