An automatic way to capture a tasks actual finish?

Hi,

Is there a field or way that I can hit 100% task complete button in Projects and have it reflect the real finish time for that task?

For example, I task is scheduled to occur between 10:00 to 11:00 but the actual task finished at 11:10.  I highlight the task and hit 100% and MPP will say the task finished at 11:00.  

I know I can manually put this in but I actually want to capture the finish time quickly so I can then review the plan later - as its a plan that is repeated not a one-off project as such.

Thanks.