Ability to amend charge expected date

When you add a charge against a client/plan it asks for expected amount and expected date. It is not currently possible to amend the expected date and really this needs to be tweaked if there are delays in the processing of the plan for one reason or another.

We intend on reporting using the charge amount and expected date to plan company cashflow but if this cannot be updated then it means we have to delete and rekey the charge each time it needs updating which is cumbersome.