Translation of text elements on Pages

Translation of text elements on Pages

Greetings, hope find all good and safe!

I have added a second language to my app on Localization. Most part of translation is Ok, but I have seen that the "text elements" on Pages are not translated, neither: auto-translated or shown in the element list where I could force a translate. It is critical, once are key labels and messages as: Welcome "user", Total "name of registers" from a form, etc.
How can I show that translated to my second language users as the rest of the elements?
Any help?
Thanks in advance.