- Start the XML Editor Perspective in the TextGridLab.
- Double-click the wanted XML document in the Navigator to open it.
- Click or double-click the hidden tab “Unicode Character Table” next to Navigator and Metadata Editor to open the Unicode Character Table View.
- Place the mouse pointer in the XML document where the special character is needed.
- Select Σ from the table with mathematical operators and click “Insert”.
- Σ is added to the XML document.
What happens if the "Recent" button is used?