Apply keywords to photos in the Light Table
You can use the Light Table to arrange your photo selection in a freeform manner. After arranging your photos into groups, you can apply keywords to a group of photos at once. For example, if you make a Light Table album consisting of the selects from your wedding shoot, you can group the photos according to the part of the wedding event they show. After you’ve arranged them, you can apply keywords, such as Getting Ready, Wedding, Ceremony, Formal Shots, and Reception, as appropriate.
Apply keywords to groups of photos in the Light Table
Select a Light Table album in the Library inspector.
Click the Keywords button in the toolbar (or press Shift-H).
The Keywords HUD appears.
In the Light Table or the Browser, select a group of photos to which you want to assign keywords.
Drag the appropriate keywords from the Keywords HUD to the selected photos.
The keywords are immediately applied to the selected photos.
For more information about using the Light Table, see Light Table overview.