Save a backup (X8A) to save all settings.

A handful of the "UTILITY" settings can be set by creating your own template (one template name is "Standalone" )

How do I store a utility edit?

There is nothing special you need to do to store a [UTILITY] setting. The settings are immediately activated as made and become your preferences.

Extra Credit:
What you need to know is that when you create a USER file .X8U your current Utility settings are documented in that File.

Loading that User File will replace and restore the following: User Performances, User Live Sets, User Arpeggios, User Motion Sequences, User Waveforms, User Curves, User MicroTunings and your Utility settings*.

More often than any other “Content Type”, you will be saving User Files. The USER area is where your day-to-day activities will take place. It is your “work area”. While working on a particular project you would use this area to assemble the data you wish to use. You can draw from the Factory Preset ROM and/or you can draw from your own custom ROM Libraries to build new versions of them. Once you decide on a workflow that suits you, you’ll find that loading any of your .X8U Files will also restore your Utility settings (preferences).

You can update your preferences by loading a file, setting the Utility mode as you desire, then Overwrite that .X8U File.

And while Jason’s recommendation is to use the Backup file .X8A, that’s a bit overkill as it backs up and restores all MODX data. You definitely do not want to SAVE and restore an entire Backup just to archive your Utility settings. Entire Backups (.X8A) would be equivalent of doing an entire computer backup, when you’re attempting to just document your system preferences. Overkill. And eventually could be very time consuming - like backing up your entire computer, the .X8A File (complete Instrument backup) is done less often than the .X8U File (today’s work).

*Although User Files .X8U save your current UTILITY settings, and it is the USER Bank that becomes your Libraries; Utility settings do not get placed in your Libraries. The current Utility settings apply to all. As do the Quick Setup templates... the currently loaded Quick Setup templates apply to all.

As to the QUICK SETUP feature: These manipulate a specific set of Part and Utility settings - parameters you would use when connecting your MODX to an external sequencer or computer DAW. There are four Quick Setups, three of which are User programmable.

The fixed one is called “Standalone” which resets all Quick Setup parameters to the condition where the MODX can be used without external audio or MIDI rerouting... literally, standing alone, when using the instrument without an external sequencer or DAW. Like normal!
The others are “executable templates”.

You can store within these templates:
_ Audio Settings that effect output Gain, and monitoring settings for when using the MODX as your audio interface
_ MIDI Settings for what gets transmitted, Clock Sync functions, and preferences for SuperKnob, Scene Control, and Foot Switch
_ Part Settings for Output assignments, Analog In and Digital In assignments

The Quick Setups, when selected, instantly reprogram dozens of Utility and Part setting parameters. When you touch a Quick Setup box: Standalone, 1/2/3, the stored settings for each are immediately sent. Setups 1, 2, and 3 are user configurable, and whatever you store to these three is saved as part of your Utility System settings which is backed up in your User File .X8U.

Probably more info than you needed, but that gives a clear picture of how it works. If, for example, you’re a 432Hz musician... where you want your instrument tuned overall to 432Hz. Once you set it like that, this is your preference. It will remain at that setting until you change it or overwrite it... all your subsequent Files will ‘Save’ this as your preference.

Hope that helps.

Note: documentation for what is saved where is best illustrated in the MODX reference manual. Available here:

https://usa.yamaha.com/products/music_production/synthesizers/modx/downloads.html

This document is even useful for Montage users since Montage's reference manual, to my knowledge, has not been updated since initial release and does not detail some updates that were made in later firmware. MODX has some of this reflected such as X8A (Montage would assume what is saved in X8A matches X7A for Montage saves)

Page 23 shows you what saves "Utility" and the quick setups as well ("Standalone", etc). X8A, X8U both save these. Correct that X8U would be faster and still save the requested utility settings. X8A adds (to X8U) song data as well (along with Libraries - if you have any installed). My suggestion was intentionally conservative - although you can look at what is saved with each format and determine if you need the extra bulk or not.