Here is how document text can be translated using a table with the source and translated paragraphs displaying side by side:

1. Open the document that should be translated:

2. If the document's page orientation is Portrait, click the "Change page orientation" button of the "File" toolbar:

3. Press Ctrl+A, or click the "Select all" button of the "Edit" toolbar:

4. Click the "Insert table" button of the "Insert" toolbar:

and convert the selection into a table:

5. Add a new column to the table:

6. Click the "Default Language..." command from the menu attached to the "Language" button of the "Tools" toolbar:

and choose the language into which the source text should be translated:

7. Start adding translated text to the second column:

8. After completing translation, select the first column – hover the mouse pointer over its top edge, and click:

9. Press the Backspace key, or click the "Delete cells" button of the "Table" toolbar to delete the first column:

10. Click the "Convert table to text" button of the "Table" toolbar to remove table formatting: