https://premium.wpmudev.org/blog/how-to-translate-a-wordpress-plugin/

The WPL default language file is placed on this path: /wp-content/plugins/real-estate-listing-realtyna-wpl/languages/real-estate-listing-realtyna-wpl-en_US.po or /wp-content/plugins/real-estate-listing-realtyna-wpl-pro/languages/real-estate-listing-realtyna-wpl-en_US.po for WPL PRO users. You can copy and rename this file to your language code (e.i. real-estate-listing-realtyna-wpl-es_ES.mo) and then translate the new file.

After that you should place your translated file into the WordPress language directory of plugins (Normally it is /wp-content/languages/plugins/) and change the WordPress language in wp-config.php file. If you're using WordPress 4.0+, you can change WordPress language from Settings->General menu as well. Please check following screenshot:

You can also use the WMPL plugin or other plugins if you installed one of them.

Note: After modifying keywords, you should clear listing cached data. You can find it on WPL Settings->Maintenance section:

If you want to create a WordPress multilingual website, then you don't have many choices. You can use free plugins such as Polylang, qTranslate etc or use a premium plugin like WPML.

We strongly suggest to use WPML since it's the most complete solution for creating a multilingual WP website.

Configuration

After installing and activating the WPML, then you should configure it, wrong configuration can create many problems for your website so please configure it with caution. We suggest to read this article carefully and proceed with its instructions: How to Create a Multilingual WordPress Site with WPML

Also you can check WPML official guide for language configuration: WPML Language Setup

Translating

After configuration, then you need to start translating your website contents. Please check the following articles for each section.

Translating Posts/Pages

Translating Categories/Tags/Custom Taxonomies

Translating Menus

Translating Widgets

Translating Strings

Anything that doesn’t fall inside posts, pages or taxonomy goes into String Translation. This includes the site’s tagline, general texts in Admin screens, widget titles and many other texts.

Translate WPL listings

Using WPL multilingual feature, you can simply configure your WPL to work with WPML. This way you're able to translate property descriptions, property titles, location texts, page titles etc simply. Please check this article completely: WPL Multilingual Feature

Also if you added your custom fields using WPL Flex, then you're able to translate those fields using WPML String Translation menu. Please check this article: Translating dynamic WPL strings

Language Switcher

After translating your website contents, then you should place a language switcher into your website so visitors can simply choose their desired language. Also you may check language switcher options to achieve your desired style.

Appendix

Change WordPress admin language

Different domains for languages

For generating dynamic strings go to WPL->Settings->Languages and click on "Generate WPL dynamic strings for using in translation plugins like WPML" button.

Then use one of following approaches:

1- Rescan WPL strings using "WPML String Translation" plugin if you're using WPML plugin.

2- Add /path/to/plugin/languages/keywords.php keywords into your .po file (using some tools like this) and translate dynamic strings and then upload new .mo file in language directory.

Note: If you added some new Listing Types, Property Types etc. and you want to include new keywords in language file, Please go to WPL->Settings->Languages and click "Generate WPL dynamic strings" button.

If you're using WPML string translator or any other plugins. Now your plugin should find dynamic keywords. If you're translating a .po file directly you should update your .po file manually.

Note: After modifying keywords or translating keywords you should clear listing cached data. You can find it on WPL Settings->Maintenance section:

For creating multilingual websites using WordPress, you need to use one of the multilingual plugins first, such as WPML, etc.

Note: You should configure your multilingual plugin first. For instructions, go to the plugin manuals or support forums.

Note: If you translate the strings using WPML string translation plugin, don't forget to add .mo files of languages in /wp-content/languages/plugins/ path otherwise some sections won't work properly. For this you can download .po files from WPML and then convert them to .mo files using poedit software.

After installing and configuring one of the standard multilingual plugins, you need to enable the multilingual feature of WPL. You can enable it from WPL->Settings->Languages->Multilingual Status. It is disabled by default.

Then you should insert installed languages into WPL language options and select a page as the WPL main page. Each language must have its own WPL main page so you should translate your default WPL main page to other languages:

Note: If you cannot see translated pages in drop-down field please set your language option to all languages. Please see below figure:

After completing these steps, you should specify your multilingual fields. Go to 'flex' and edit one of text or textarea fields.

You're done!

Multilingual Property Link (Alias/Permalink) and/or Property Location Text

For making Alias/Permalink and/or Property Location Text you can simply set their multilingual option to Yes in Flex menu and clear the listing and users cached data in Settings menu.

Please see our catalogue below and check if we have your preferred language:

1. English (US)
   
2. English (UK)
3. Italian
4. Serbian
5. Spanish
6. Croatian
7. French
8. Danish (Denmark)

Don't see your language? Since this is a brand new project, you have an opportunity to join the team and reap the benefits!
We are currently building our language portfolio and we want your help! If you have translated WPL to German, Spanish, French... and you don't see that language on the list, let us know! For a limited time, we are offering a 20% discount on our Realtyna products in exchange for your language file.

If you have been contemplating purchasing one of our products, now might be just the time!
* Coupon voucher is valid up to 6 months