Crafter Locking

I think it would be a great idea to make it so that you can lock each slot of the crafter to a specific item to make complex recipes more accessible to players with less technical prowess. One way you could do this is by making it so that you can lock a single item in each slot so the stacks never run out. Another less practical way would be to make it so you can make a searchable list of all of the items able to be crafted into somthing in a similar style to the recipie book to select from for each slot so that you can make it so that each slot only accepts a specific item. Either way, i think this would be a great way to not only make the crafter more accesible but to also make it more compact.