Maintenance tab

You can specify this information on the Maintenance tab:

Shutdown Window – Previous
The number of days in the past the planned maintenance work can be moved to align the work with a shutdown calendar.
Shutdown Window – Next
The number of days in the future that planned maintenance work can be moved to align the work with a shutdown calendar.
Shutdown Window – Next Bias
The bias used to move maintenance work into the future instead of the past. For example, a bias value of two allows maintenance work to be moved twice as far into the future than into the past, for valid shutdown dates.