The TNAP image purposefully does not provide an online update, so the menu was hidden.I found that the blue button on the remote will show hidden menus. There was only one that I've found useful - software update that was hidden.
TNAP is meant to be an introduction to Enigma2 for North American users, providing a tested and stable image for those wishing to simply use the STB as it was delivered or to replicate an appliance STB. Once E2 operation basics are understood, I would assume that most hobbyists will migrate to other multiboot images, which provide frequent updates from the repositories and introduce new functions/features.