To add bold:

  1. Once you have translated the segment, highlight the part which you need to be in bold. Then press the bold button (b) in the Quickinsert toolbar. To display this toolbar you have to go to View → Toolbars → Quickinsert.
  2. Right-click on the target segment before you begin typing the text that needs to be bold and select Quickplace. This way you will see the tags available to insert, which are the same that appear in the source segment, and you can select the bold tag.
  3. Use the keyboard shortcut CTRL, with or without selecting the text. The Quickplace dropdown list should then be displayed, from which you can select the bold tag.

To remove bold:
To do this you will need to delete bold tags manually. To display them, click the Toggle display of formatting tags button in the Translation and Review toolbar, or use the shortcut CTRL+SHIFT+H. To display this toolbar you have to go to View → Toolbars → Translation and Review.