This is assuming you have run the laser wizard and not using your own custom built pipelines.
Quantity discounts are a great way to incentivise larger purchases from your clients.
Go to Tables > Laser quantity discounts. As you can see, the wizard has set up a table with a few sample quantity discounts.
I don't want quantity discounts
Easy - just remove all rows, by clicking X, in the key cell.
Setting up more breaks
You can add more quantity discount breaks, by clicking the + button in the last row. Make sure to fill in every cell in the new row by clicking the pen icon in every cell.