Statements: Include invoice amount column for payment lines

[WER]

Would it be possible to add a column to the Activity (&/or Invoice) Statement Form for "Amount of Invoice"?  At the moment there is a "Ref No" column but nowhere to let the receiver know how much the Invoice attached to the Ref No is.  I think they need to know the amount so that they can check that the amounts they have entered into thier system matches the amounts for which they have been invoiced.  A column between "Description" and "Payments" should work.

"Extra column to Statements"