Space to add item, maximum length is 414. Item ID's don't do anything yet, so it doesn't matter, even if it's blank. Stopping the project won't delete your information, but pressing the green flag will. (Therefore if you stop the project then press e again your stuff will still be there) e to open/close inventory EDIT: Width is now constant, only the length and item ID are variable now.
Re-sorting system finished! INV_ANIM_SPEED controls the speed of the animations, with higher numbers making them smoother but take a bit more time. When it's at 1, the animations are instant.