Thank you very much for your answer, I will try what you have suggested and will let you know the results.
Hynek Palatin wrote:
Do you mean you want to import an exported translation memory and create a new text field for every imported translation unit? In that case, open your empty TM and define the field in Workbench: File - Setup - Fields. Then import the .txt file and use TM Maintenance (File - Maintenance): Press "Find and Replace", define the contents of the new field, press OK, press "Begin Search", press "Change" and select "All translation units".