People now and then complain that it is difficult to center text in the product designer. We sell birth announcements and wedding invitations, so this is quite important.
One way to fix this is to add a little vertical line at the center of the top line of a text box. That way they can position it against the middle of the card.
something like this:
This would be an easy thing to add. Does no one else think this is a good idea?
In the toolbar under position tool you can find 2 buttons to center horizontal and vertical.
There is also a snap action to enable a grid for position/center elements.