Add the following to your config to get your Sort Button to work with the Abyss Storage Tanks (both horizontal & vertical)

"assets/prefabs/deployable/large wood storage/skins/abyss_dlc_large_wood_box/abyss_dlc_storage_horizontal/abyss_barrel_horizontal.prefab": {
"Enabled": true,
"OffsetX": 476.5
},
"assets/prefabs/deployable/large wood storage/skins/abyss_dlc_large_wood_box/abyss_dlc_storage_vertical/abyss_barrel_vertical.prefab": {
"Enabled": true,
"OffsetX": 476.5
},

Just install the update from 4 days ago?

Ah, complete oversight on my part, just trying to be helpful to others. Nevermind then. :)