If you require multilingual for your cms pages within PrestaShop store, using phpMyAdmin can achieve this very easily.
For example, I require a cms page to be in both English & Spanish, and even though I’ve enabled the language packages, some cms pages did not have dual tables for the ID’s within the Data Base..
PrestaShop > BO > Tools > Languages
English ID = 1
Spanish ID = 6
In phpMyAdmin, select the portion to ‘copy’ the table that you want to duplicate for your other language.
In your newly copied table, adjust your contents language and change the id_lang to your language’s variable; in my case it’s #6.
After adjustment, your new table should appear with the new language id.
Fairly simple and effect!