There are a number of settings on the Nautilus that I recommend for new owners to maximize its performance and your workflow.
Calibrate the Touch Screen- Go to the drop-down menu and select Touch Panel Calibration. To have your touch panel respond to your inputs properly, use your fingernail to lightly touch the 2 green squares when prompted. This ensures that your inputs are precise and will come in handy when switching the tiny tick boxes in various pages in the Nautilus.
Set the Velocity Curve- This defaults to curve 4 which is mid-way from the least sensitive setting 1 to the most sensitive setting 8.
For Nautilus 61& 73- If you're what you would describe as heavy-handed and strike the keys at a higher velocity than normal, set this below 4. If you're on the gentler side, pick a setting above 4.
For Nautilus 88-key owners, the ideal setting is 9 which is a velocity curve designed specifically for the RH3 keybed.
Set Power-On Mode- Change this to Memorize from Reset if you want your Nautilus to power on to the last page you were working on prior to shutting it down.
Mute Mode- Set this to Live to maximize polyphony. In Combi and Sequencer mode, muted timbres or tracks sharing a MIDI channel remain active when set to studio thus using up notes even if they are inaudible. Setting this up to Live ensures that you do not exhaust polyphony unnecessarily.
Set Controllers- Press the Page Button and select Controllers on the screen.
Footswitch Assign- Assign to CC#82 to control various parameters with the AMS feature. If you want to use this to advance through your Set List, set it to Program Up. If you want to use this as a play button for your Sequencer, set this to Sequencer Start/Stop. Set polarity accordingly in Foot Switch Polarity. Korg pedals have a (-) polarity while Yamaha and Roland pedals are (+). Ensure that your pedals have a TS connector.
Damper Polarity- Set this to (-) for Korg and Casio pedals and (+) for Roland and Yamaha Pedals. Note that (+) polarity damper/sustain pedals with a half-damper function or TRS connector is not compatible with your Nautilus
Set your Expression pedal to CC#04 if you want to use it as a general controller for various parameters. E.g. as wah-wah pedal. Set to CC#11 or CC#07 as an Expression Pedal or volume pedal. (Expression and volume serve the same function however most premade combis use CC#11 to independently control volume for timbres)
Setup your Quick Access Buttons- Below is my setup for the Quick Access Buttons using the U1 custom slot.
File Management- It is best to organize your files early on as it is quite easy to clutter your Nautilus HD with various file types, create folders for various files and save your data in the appropriate folder. Saving everything indiscriminately on the root directory will be make locating files difficult to locate down the line. Here's a screenshot of my HD in Media.