Can durations be calculated from labor units (manhours)?

I need to be able to use labor manhours to calculate original durations for the baseline and remaining durations for the updates. I will have two crews of 5 men each that will work 5-10's (5 days @ 10 hrs/day). IN MS Projects, I can do this by assigning 5 resources to each activity and then assign the estimated manhours in "Wok". When updating, I put the actual hours in the column under "Actual Work". This will calculate "Remaining Work" hours and remaining duration. Can this be done in P6? Thanks