Update ad schedules with the "Add multiple" tools
When you use the Make multiple changes tool for campaigns or sitelinks, include an "Ad schedule" column to add, change, or remove schedules.
Here's a sample campaign list, where the first line is a column header row:
Campaign, Ad schedule
Campaign #3, (Tuesday[10:00-14:00])
Campaign #2, 
In this example, Campaign #3 will start running on the specified schedule (Tuesdays from 10 am to 2 pm), and any current ad schedules for Campaign #2 will be turned off.
|"Ad schedule" column value||Result|
|(Day[time-time])||Enable the specified ad schedule.
See formatting instrucions.
|[ ]||Remove existing ad schedules.|
|Leave column blank.||No changes.|