The ‘Set Exception Window’ setting allows you to apply in-school policies to your students for specified time periods even when they are off-campus.

Application of Policies: If you have the Take-home policy or if parents have the Parent Policy set up, then the student will be filtered according to those policies when they are off-campus. However, if you want them to receive an in-school policy instead, you should enable the Set Exception Window field in Global Settings. This is particularly useful when schools have not yet opened full-time offline, and students are attending classes online from home.
Selecting Days and Times: You can select the days and times when the exception window should apply. For the selected days and times, the student will receive the in-school policy even if the parent policy or take-home policy is present. For days and time slots not specified here, the parent policy or take-home policy will apply if the student is off-campus.

This will allow you to customize the application of in-school policies for students even when they are off-campus.

Note: This setting will only be present once you have enabled "Set exception window for out of school policies" in your Global settings

How does setting an Exception Window work?