Aligning text with other graphic elements with the new text tool...

Hello!  I've created a text box with the graphics->new layer->rectangle menu.  I then created a block of text.  I'd like to align my text over the text box.  This used to be easy in the old legacy title creation window, but now I can't seem to find a way to align text with other graphic elements.  I can align the text with center of the frame, but not relative to other objects. Please help!