Quoted from benheck:On paper the Pinbar(tm r c) makes sense for troubleshooting - you've got the PF up, the main screen is blocked, but the PinBar(tm (C++)) can display the tests etc.
The dumb thing about this if it were ANY OTHER PRODUCT IN THE WORLD it would just connect to your smart phone. Printing under the PF? Cool, put some QR codes there. Hold your phone in an area, it sees the code, BOOM you're in the test menu for that section so the screen isn't a mess of irrelevant data. Built in flashlight too!
My kids got that Lego Mario set. The instructions are now an app for their phone/tablet.