You can assign an alert schedule to multiple employees at the same time by accessing the Administration section from the main menu and selecting "Alert Schedules". At the top of the page, click on the "Bulk Assign Alert Schedule" button to open the Bulk Assign form.
On this form, you can select the schedule to assign, the employees to assign the schedule to and the administrators you would like to receive the alerts. The date control at the top of the form can be used to set a start date for the schedule that will apply to all selected employees, or you may check the box provided to state that the schedule should run from each individual employee's start date.
Clicking the "Add" button at the bottom of the form assigns the schedule to the selected employees as requested.