STILL can't get custom icons on buttons for an MX-880 through CCP. Ridiculous that it's this hard.

When I select a button and then choose "Image Gallery" (2nd tab in properties pane), and then hit the "..." icon to choose a gallery, I see only the following choices: Blank Buttons, Local, Music Favorites, National, and Premium.

Tried adding a PNG file that worked fine in the older MX-880 editor into the directory mentioned above by Clemdia, but the added icon doesn't show up in any of those directories. I see no way to open an arbitrary disk location in the image gallery, or get another folder to appear.

Can anyone help me?