Within an open letter, select the text to be moved or copied.

To move the text, either click on the toolbar, press CTRL+X or SHIFT+Delete, or select Edit > Cut from the menu bar.

To copy the text, either click on the toolbar, press CTRL+C or CTRL+Insert, or select Edit > Copy from the menu bar.

Move the cursor to the position for inserting the text.

To paste the selection, either click on the toolbar, press CTRL+V or SHIFT+Insert, or select Edit > Paste from the menu bar.