How to keep my custom translations of the back-end when updating HBook?

If you have done custom translations of HBook admin for your website, you might wish to be able to keep them. HBook allows you to create custom language files for the plugin in addition to the ones that come packaged with HBook.

You will save both .mo and .po files in the folder wp-content/languages/plugins.

So if you wish to customize the existing translations or if you wish to add translations to your language for HBook back-end, you will save your custom translation in this folder. When you update HBook next time, the package translations will be updated but your custom translations place in the folder wp-content/languages/plugins will not be overwritten.