This page will allow the seller to lower the reserve amount while choosing whether they want to make information about the reserve available to the buyers. Clicking on this option from the seller menu will bring up the following page:

First, select the lot you want to set reserve options for. You may choose from one of the following options which will affect how bidders see information about the reserve:
If the current bid price is below the reserve, the seller may lower the reserve amount to be $100 above the current bid. Reserve may not be increased and reserve can not go lower than $1000.
When finished making changes, click the "Update this Lot" button.