For aligning things in rows, columns or grids, have a look at the Layout TOP
But I think this is not necessarily what you are asking. I think you might be looking for a solution as described in this tutorial here:
The idea is that all the characters are read into a 2DTexture array and then accessed depending on which character is needed. GEnerally for each character a rectangle is rendered and the correct textureslize from the 2DTexture array is assigned.
The repository also has an instructions file.
Hope this helps a bit