Sorting button is there, is in top - right part of screen when you have inventory opened.
Image is from older version ... but its on pretty much same spot, just bigger now.
https://preview.redd.it/2f4gyt4au3s...0609989e7bab6ecb233a86b260212a744a72c70dBut i really wonder what for do you need pause. O_o
Quite many people is demanding it around here, but nobody so far was able to tell why. O_o
There is no timer on litteraly anything, the world is waiting for you eternaly and nothing is happening without your presence, you could say that this world is permanently paused unles you came around and start acting. O_o
