Amazing plugin, Works correctly exactly as the description said, Works on 1.21.1
A quick request though, When you shift click a shulker in your inventory to quick put the shulker box inside the other one, it only works with non-colored shulker boxes. Please make it work with all colors, I'm guessing it's probably because minecraft has different data for each color as if it's a seperate type of block?

I always wanted a plugin like this, but can you please make it so that it only works if you have a specific permission?

Awesome plugin! Does exactly what i wanted to do! Removed that annoying feature which wasnt needed. Thanks

This plugin breaks hoppers, if you put a full stack of items in a container and a hopper underneath the hopper will take the entire stack at once but only put one item into the destination container. I posted about this in the discussion page of this addon in early August but no response and no updates it seems like this addon is abandoned with this critical issue

I cannot put colored Shulkers in other Shulkers, but if that gets fixed then a 5 star review

It does not work on bedrock edition via Geyser. I will test it on Java edition later but it'd be amazing if you could make it work with geyser somehow!