Able to change and craft while dead (with keepInventory rule true).

You can craft after you die (only with keepInventory rule true).
1. Jump off enough blocks to know that you are going to die.
2. Press your inventory button, do not leave your inventory.
3. When you die, wait for the POOF to appear, then you can craft, move your items around, and even drop items; but you cannot pick up items you dropped.