By copying a resource the following information about it will be copied: resource name, type, material label, initials, group, std. rate, cost/use, base calendar and code. 

To copy a resource click Copy option from Task tab, press CTRL+C/Command+C or select Copy Resource from contextual menu after you right click on a task.

In order to paste a resource, select the rows where you want to paste the selection and Click Paste.​​