While logged into your online account, choose Reserves/Requests.
Then set the date range you wish to suspend your holds for. Your place in line will be saved, and any holds will trigger on your return date.
For more help with online account features, watch our videos:
How to Search Our Online Catalog! https://youtu.be/5sxFP_zmbcI
How To Access My Account! https://youtu.be/a9dU3W5Rjqw