What on earth does 'list quantity amount' do??

What on earth does ‘list quantity amount’ do??

I put a number in this field and it does nothing, anyone got an example of how to use this?


List quantity works with quantity step to build the Quantity dropdown in the storefront. In order to work, quantity step must be non-zero.

List quantity specifies the number of iteration of quantity step to display. For instance, if quantity step is 1 and list quantity is 5, the dropdown contains 1-5. If quantity step is 3 and list quantity is 4, the dropdown will contain 3, 6, 9, 12.