By clicking the shift right button, the location of the selected hall in the hall settings dialog is replaced with the one on the right.
Location of the Shift Right Button
Select the hall where you will scroll and click the right mouse button. Click the Properties line from the right click menu that opens.
Enter the hall settings.
Select the hall you want to shift from the list of halls.
Click the shift right button.
The hall you have chosen will be replaced with the one next to it.
Before shift right
Choosing the hall to shift
After shift right