Helpo de LibreOffice 24.8
Use this icon on the Tools bar to turn the Formula Cursor on or off. The part of the formula where the cursor is positioned in the Commands window is marked with a thin border when the formula cursor is active.
You can also click a position in the document to move the cursor to its corresponding position in the Commands window.
Double-clicking a character or symbol in the document moves the focus of the cursor to the Commands window and highlights its respective position.