The 3 icons that appear in blue when the Layout button is selected can change the size, row spacing, column spacing and offset.
The bottom left icon marked 1 can be dragged from any corner to increase the size of the motif a second click on the icon will activate the rotation point at the centre to rotate the rows.
Icon 2 can be dragged in any direction to change the row spacing and offset between rows and Icon 3 can be dragged along the row to change the column spacing