Custom mapping of the ARC USB is easy and straightforward. Before we start please make sure that you have the latest version of TotalMix FX installed. If you are not sure got to the RME Downloads page and select the latest driver for your RME audio interface. When you’re in TotalMix FX go to the „Options“ Tab and click on „ARC & Key Command Settings“. A new Pop Up will show up where we can see the 15 different buttons, the foot switch and also the default encoder. We can select between 36 different functions like Snapshot, Layout Preset, Fader groups and so on. The buttons can have different behaviors like push, disable, enable and toggle. Depending on your liking you should try different button behaviors. When you are satisfied with your new mapping just click on „Okay“ and the mapping is saved. Thanks for watching!