Need a way to toggle invoiced status for a single time entry

In working around the issue where we’ve invoiced time entries that need to be corrected, I find that I often need a way to toggle the invoiced/uninvoiced status for a single time entry.

However, (it seems) it is not possible to mark a single time entry as invoiced/uninvoiced (e.g. in the detailed time report), when there are multiple time entries in the day in question (because the mark as invoiced/uninvoiced action is done to all time entries that match the detailed report criteria, which only has date [not time] resolution).

Thanks!

-Jim