Select the text that you want to centre on the page.
Choose Insert - Frame.
In the Anchor area, select To page.
In the Size area, set the dimensions of the frame.
In the Position area, select "Centre" in the Horizontal and Vertical boxes.
Click OK.
To hide the borders of the frame, select the frame, and then choose Format - Frame and Object - Properties. Click the Borders tab, and then click in the Set No Border box in the Line Arrangement area.
To resize the frame, drag the edges of the frame.