It has been asked for a way to hide individual offerings within high level menu’s. We know we can hide the whole menu but some of us want to hide some of the offerings within a menu.
There are certain ones you can hide without a problem by editing the file mentioned in the OP’s link. However I have yet to find a way of doing so with the ones that aren’t listed.
I extracted the IPSW down to the lowest level (that is put onto the device) however those are all setup once the device is run for the first time so I wasn’t able to find the data. Downloading all of the data from the AppleTV over sFTP takes a long time. But I will have a look later and see what I can do.