Rounding checkbox missing in sales order

Rounding checkbox option is not available in sales order edit screen

I think that option should be present in sales order as well

If a sales order grand total for example has value less than .50 after decimal( like 4.49, 6.35, 9.2 etc) and if a sales invoice is issued with Rounding option enabled, the grand total in sales invoice becomes floor value of the original total like 4,6,9 for above example

And the sales order status shows as partially invoiced in sales order tab, which is not correct because invoice has been issued by copying the same sales order, with same items, price, qty , tax(if any) etc.


Waiting to have Rounding Check box for Sales Order and Recurring Sales Order.