TL;DRShortcuts to craft common things without having to search them
What ?Pressing shift (or other key) shows the item count that can be crafted for each item in the toolbar (maybe in green digits above the current count). Then with the key pressed, left click craft one and right click crafts 5. Useful when you have an item locked in the toolbar but have 0 items in the inventory.
Also, currently, when you press Q on a item in the ground that you have in the inventory, you select it to place it, but if you do not have it, a sound is played and nothing happens. When you press three times Q on an item you don't have, a small window with only that item could show and let you craft that item as usual, but without having to search for all the items the one you want to craft.