How to find the technical column name for a custom column Opus expect here?

I have a custom column that belongs to this script Add multiple filters and tags to files using ADS.

I want to create a hotkey that will let me sort by one of its columns. The column appears as Notes in the lister:

Things I have tried:

Set SORTBY=notes

When I trigger a hotkey with the above code, nothing happens. Same for the following:

ADSFiltersAndTags.Notes

Any help would be greatly appreciated!

Use the Arguments menu in the button editor to fill in the details without having to work it out:

I have not touched the key editor widnow in a while, I completely forgot about that!

Thanks.