Just the basic controls, some user oscillators and effects have more parameters that can't be reached via MIDI.
There's an added keyboard, with its own Arpeggiator. So there are 2 arps, the NTS-1s own and TBMSs. Which can make for some fun results. But can be confusing at first. Other than that, not much going on. You can control the TBMS arp if you connect a keyboard and enable MIDI in with the appropriate button.
For more information on TBMS and how to use it, please look up my other TBMS templates on this forum, where I have already posted the most common useful tips, imo. But here's one, when you save your page as a 'canvas snapshot' instead of as a 'page', the parameters of everything are stored. Which means the next time you light up your NTS-1, you can use the 'send all parameters' to the NTS-1. A bit like storing a patch, which you can't do on the NTS-1 locally.