Click Pieces in the left-side menu. Click on the Piece you wish to donate. Then click the gray Donate button under the title.
Enter the Donation Value of the Piece. You can also include the Date, Location, and Client Info. Then click Save.
Click Pieces in the left-side menu. Select the blue Action button to the right-side of the piece you wish to donate. Select Donate from the drop down menu.
Enter your information. Then click Save.