Parenthetical, also called a "wryly", indicates the way a line of dialogue is delivered or a gesture that does not need its own line of Action; typically used sparingly, if at all.
With the cursor anywhere in a Dialogue element, press Shift+9 (left parenthesis).
NOTE: if "Tab in Dialogue takes you to Parenthetical" is checked under Tools > Options > Text Entry/Editing, press TAB.
A Parenthetical element is created at the cursor location.
If the cursor is at the beginning of a Dialogue element, the Parenthetical is placed between the Character Name and the Dialogue.
If the cursor is in the middle of a Dialogue element, the Dialogue is broken by the Parenthetical.
Type the Parenthetical text, and press RETURN.
The cursor moves to the Dialogue element following the Parenthetical.
Type a Left Parenthesis in Dialogue as Text
To type “(“ in Dialogue as text (instead of creating a Parenthetical element) press CTRL+Shift+9.