(1) Explain your problem, don't simply post "This isn't working". What were you doing when you faced the problem? What have you tried to resolve - did you look for a solution using "Search" ? Has it happened just once or several times?
(2) It's also good to get feedback when a solution is found, return to the original post to explain how it was resolved so that more people can also use the results.
It been a while since I set up resources, but in user preferences there is a setting for "Time Distributed Data" and you can pick day. I also recall there is somewhere on the charts where you can divide by for example 8. Personnally I can visualize 10 workers for 8 days, than 640 hours spread over 8 days. I wonder what is most common. Personally I would like to see a manpower loading chart - but think this works better in excell than p6, but than also quantity / production rate - but generally just use the udf for these. I think most people know it is easier to do cost as a resource, but it complicates it if you also have resources.