To move only the leader terminus, click and drag its yellow control handle to a new location. To autosize the text box so that it fits the text, right-click it and select Autosize Tex Box, or select it and press ALT+Z. The leader line's terminus will remain where it is and the leader will automatically adjust to text box's new location. Alternatively, click and drag the leader line (not its handles). To move only the text box, click inside the text box and drag it to the desired location. To resize the markup, click and drag the appropriate yellow handle. By default, the markup is rotated in increments of 1° to rotate in increments of 15°, hold down CTRL while dragging.
To rotate the markup, click and drag the orange handle.
Each handle controls a different aspect of the markup's size and orientation. Select a markup to reveal its control handles.