Override the WC Vendors Pro Dashboard open partial

functions.php

<?php 

// This will assume you have created a directory in your theme called wc-vendors/partials/ 
// Then added the override file here. 
add_filter( 'wcvendors_pro_dashboard_open_path', 'wcv_override_dashboard_open_path' ); 
function wcv_override_dashboard_open_path( $path ){
	$path = get_stylesheet_directory(). '/wc-vendors/partials/wcvendors-pro-dashboard-open.php'; 
	return $path; 
}

You can override any template partial as long as you have the partial override located within your theme.

This will override the product table actions partial.

// This will assume you have created a directory in your theme called wc-vendors/partials/ 
// Then added the override file here. 
add_filter( 'wcv_product_table_actions_path', 'wcv_override_product_table_actions_path' ); 
function wcv_override_product_table_actions_path( $path ){
	$path = get_stylesheet_directory(). '/wc-vendors/partials/product/wcvendors-pro-table-actions.php'; 
	return $path; 
}