@Daryl K In SuiteScript the lines are accessed like an indexed array starting in position 0, but the field/property line at the line level holds a line number for NetSuite, this line number is not consecutive because if you remove line 3 and insert a new line, that new line would be line 4 even tho you may only have 3 lines visually in the order/transaction. So depending of what you need to do you need to create your work around for this.