Sorry if I'm stating the obvious but something I'd like to share for maybe 1 or 2 people who haven't thought of it.

When authoring in VCDEasy you can create menus that have 4 way cursor control by assigning the 2,4,6 and 8 keys on remote.
Have the original menu screen/s made up several times, each time with a different selection highlighted.

The 'new' arrow keys would jump between stills but the illusion is that the only the highlight is moving.
Perhaps the 5 button could be "OK"