You can select finalists when a minimum of 2 designers enter your design contest. You can select finalists as long as the contest is running. After you have selected finalists they will only be able to upload designs into the contest. Other designers are excluded.

The finalists can also submit their designs after the end date of the contest. However, the duration of a contest may not exceed 6 weeks. 

When finalists are selected, only the names of the designers are visible and not the designs. The finalists must be chosen one after the other. A designer cannot be added to the finalists later on.