Plug in tiles into the grid layer. When an instance of the pattern has been completed select the Fill Design button in the Pattern section of the ribbon bar.
Use the buttons highlighted in the pictures below to switch to other possible ways to arrange the pattern.
Move the pattern placement within a room by using the four directional arrows in the Pattern section of the ribbon bar.
Save as Quick Tile:
Once the pattern is exactly the way you would like it you can choose to save it as a Quick Tile pattern so that you can use it again easily in the current project or future ones.