When you add resources to a schedule, you are simply joining skills with scheduling periods to create a resource that can be utilised by the schedule.
Open the Resource Balancing window
Select New from the File menu
OR
Select the New button from the toolbar
OR
Select New from the popup menu.
Pinnacle will add a new row for you to select a year and period.
Choose a year and period, and enter the available hours for that scheduling period.
Select Save from the File menu
OR
Choose Save from the popup menu.
OR
Click the Save toolbar button