Resources capacity

Hello 
I have two question regarding recources capacity 
- Is it possible define two diferent action ( work ) for the one resourcess in the same time 
- Is it possible make for such condition ( ex. for three diferent resources , wiht diferent assigned day )  
resources 1 - 40 day 
resources 2 - 5 day 
resources 3 - 2 day  
normaly program make calculation " planed duration day's  47 day "  - is possible make only planed duration as longest  time needed  ( resources 2  / resources 3 - make job pararell )
 
best regards 
Gregor 
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