HawkHR enables admin to customize the settings for leave configuration. In order to configure weekends in sandwich rule:
Navigate to: Control panel -> Settings -> Leaves, down scroll the page to come to the section of Add Leave Category
The last two check boxes configure the incorporation of weekend in leave counts:
Mark the upper check box to Consider weekends in between leave term as leave
Mark the lower check box to Consider holidays in between leave term as leave
Click on Add button to update the settings
Refer to the following articles for in-depth instructions on Leave Configuration
All the changes will be made instantly.