Overtime rules are found in each Award:
Go to Awards.
Click the applicable Award.
Scroll down to Loadings.
Click Overtime.
For example, the following grid rules are:
First 2 hours on a Weekday is paid at time & half (150%) and the balance at double (200%).
Saturday & Sunday are paid at Double time (200%).
The Payment Conditions box lists what Overtime is paid on.
To use Period Overtime instead of Day Overtime,
Tick the above bottom line.
Complete the Period O/T line in the Overtime rules grid.