Hi, I have a client script that runs on quotes that does some validations and sets a few transaction line fields when an item is added. It works totally fine, however I can't figure out how to get it to run when a user adds items via the "add multiple" button. I have added logging for all of the entry point functions but none of them seem to trigger? Is it possible to capture this event?

Not natively, no. A common frustration around here