Your MOD is very useful! Thank you very much. I have a strange idea here. What if a long chests, like a train trunk, can lock things with the middle mouse button?

I think filtering chects is not possible. Do you know some other mod which have chests which can be filtered?

cars and train wagons can already be used as replacement of chests, eg simulating a 2x6 chest with a wagon, or putting cars on a belt to simulate filterable and huge moving chests :-)
maybe some mod could create extremely long train wagons to simulate this effect of having filterable WideChests ? :-)