It's a plugin for WooCommerce that can change the action of the 'add to cart' button to submit an order for the product.
The plugin has been translated to Persian already.
Plugin sent for wordpress core to check.
The plugin has a page for change default order status. This is page is in the 'Settings' menu.
The plugin is using i18n functions. So you can translate it to your language.
Already translated for Persian
See 'Add to order' in wordpress.org
At first download the plugin and extract it to {wp root}/wp-content/plugins
Then active it from plugins section in wordpress dashboard