Straight Line text lies on a line that can be oriented at any angle on the drawing.
Angle
Enter the angle at which the Straight Line text will be displayed. It is measured counterclockwise from the horizontal.
Mouse as
Select Bottom or Top. After you click OK and choose a position for the text, the Straight Line text will be displayed with the cursor at the bottom or the top of the first character of the text, depending on your selection.