Image Viewer Button Help

I installed the button Image Convert=jpg ADDSUFFIX="Thumbnail" WIDTH=150 HEIGHT=150 PRESERVEASPECTRATIO on the image viewer toolbar. Can the button be modified to change the name of the file to folder? I tried to change ADDSUFFIX="Thumbnail" to RENAME="folder", but it did nothing. Thanks.

AS=folder.jpg is probably what you want.

See the Image command docs for full details.