vommuan

Deal.

First, you should follow this instructions:
https://fooplugins.com/make-a-wordpress-plugin-translations/

And than I can help you to translate your plugin.

Another way…

If you want to add plugin functionality for your own content, it possible by using apply_filters(‘the_content’, $your_content);

For example:

<?php
$steps = apply_filters('the_content', get_post_meta( $post->ID, '_bistro_recipe_step', true ));
if ($steps) :?>
	<div class="steps" itemprop ="recipeInstructions">
		<h3><?php _e('Directions', Theme_Configurator::tool()->textDomain);?></h3>
		<?= $steps;?>
	</div>
<?php endif;?>

It usefull to integrate Simple LightBox to CMB2 (Custom MetaBoxes).