Here you’ll find a table with options for assigning any custom uniform or flag silks available. Click the edit (pencil) button for the uniform slot you would like to load the image into. Open the image (if necessary, click the browse button in the 3D window to locate the image file on your machine).
Repeat this step for the other gender uniform you saved, or any other fabrics you wish to load. Once all images are loaded, press OK in Document Options.
Once you have loaded the fabrics for use in 3D, be sure to assign the fabrics to the performers on the field.