Spread discount automatically when Quantity is changed, line item is added/deleted

Hello,

We’re using spread discount feature to spread discounts within selected line items , groups and entire Quote document. The functionality is working fine

We want spread discount functionality triggered automatically when following events occur and re-spread discount automatically within  selected line items , groups and entire Quote document and achieve the same target total with correct manual discount amount

○ When new line item us added in Quote

○ When line item Quantity is change in Quote

○ When line items are deleted in Quote

How can this be done?  Appreciate any help. Here is an example…