I think the name boxes are actually text boxes. You ned to enter Design Mode
to change the sizes of textt boxes.
1) View - Toolbars - Control Toolbox
2) Click the Triangle Icon (Design Mode) to enter Design Mode. this is a
toggle button which enters/exits Design Mode
3) Click the Name box and you should see the sizing button for the box
appear. Change size as required
4) Click on triangle Icon again to exit Design Mode.