When you need to move letters together in Design Space you can use the letter spacing option to get the letters closer together. Clicking the down arrow will reduce the spaces between the letters
However, since letters aren’t uniform, in most cases, you will need to ungroup the letters and move them individually until they overlap. Holding down shift key while moving the letters with the mouse will keep them on the same x-axis.
Once the letters are touching, you can weld to remove overlapping cut lines and make the word cut as one piece.
Here’s a brief video that demonstrates this technique:
Go here for more about connecting cursive text in Design Space.