You can copy items from one event to another if you have repeated donations to save the work of re-entering all the details.
The copy item process is push based. You start from the auction that has the items and click on Items then Copy Items and select the target auction to copy the items too.
Switch to the auction with the items in it. See Change Auctions for details. When you are in the correct auction, click Items and then Copy Items
The Copy Items page lets you select the target auction and the items to copy:
Choose the target auction from the drop down at the top
The items to copy are selected via a standard items chooser; see Choosing Items for more information.
Once you have chosen the items click Copy Items in the Actions menu.
A popup window will appear asking you to confirm the number of items that will be copied. Click Continue.