You can activate the Absentee Bidding feature under Event > Live Event Dates.
All maximum bids from your online auction (that have not been countered with a higher bid by the time your online auction closes) will automatically become absentee bids at your live event that a bid clerk, or member of your auction team, can place on behalf of the online bidder.
Absentee bidding is only available for items with a bidding type of "Online to Bid Sheet".
You can access the Absentee Bid Sheets with the maximum bid information AFTER the online auction has ended under Event > Live Event > Print Materials, click on Absentee Bid Sheets in the left menu. This report will list all of your leading bidders for each item, their leading online bid, and their maximum/absentee bid.
Read more on how to transition an online auction to a Live Event.