Pretranslate newly embedded resource from already existing source file in project


I've got an XML resource embedded in a dll file. The texts from this resource have already been translated seperately in the same Passolo project before as a separate XML file (only now they've embedded the texts directly in the dll file).

My question now: How can i use exactly the translations from this previous XML file (and only from this XML) to pretranslate the new texts in the embedded XML automatically - so I can ensure that exactly these already existing translations for the strings are used?

My idea was to create a glossary from the XML file translations and set the Passolo options so that only this glossary will be used for pretranslation.

Or is there a way to use the import function?

thanks for your ideas