I am not 100% sure, but I think that preset list is just a text file. So, you can edit it in text editor, I guess.
Another think is how to send it to H9 without H9 Control.
Hey, you are right: it’s just JSON files zipped together! I should have thought about it. Editing that JSON file is actually far easier than using the graphical interface (if you are used to it). Thanks for pointing me in that direction!
└── PresetLists
└── 3 2020-02-23 H9-DMD-pedal-presets
├── 0001 WARMTH.tide
├── 0002 BIG CLONE.tide
├── 0003 I WALK ALONE.tide
├── 0004 RECORD HEAD.tide
├── 0005 BE WOWED.tide
├── 0006 WARPED RECORD.tide
├── 0007 STREETS.tide
├── 0008 CLASSIC CHORUS.tide
├── 0009 LONG OLD DELAYS.tide
├── 0010 LONG VINTAGE2.tide
├── 0011 BALLERINA.tide
├── 0012 1984LEGS.tide
├── 0013 3 OCTAVE RANGE.tide
├── 0014 POWERCHORD.tide
├── 0015 SHATTER.tide
├── 0016 INSANITY BUILD.tide
├── 0017 RISING SWIM.tide
├── 0018 DLYOCTAVE.tide
├── 0019 CLASSIC CRYSTALS.tide
├── 0020 CARNEGIE HALL.tide
├── 0021 SHIMMER.tide
├── 0022 ULTRATAP.tide
├── 0023 ULTRASWELL.tide
└── metadata.tidel
