This is only really relevant when enabling the option to put in stacks of items and then putting less than four stacks in but the stacks populate the job slots one after the other, so you lose a lot of efficiency. When automating and pushing for example one stack in, only the first job does the inscribing and the others are idle. It would be nice if the inscriber automatically spread items evenly between jobs, like in the multislot Mekanism machines.

A round-robin scheme would be favourable for increasing throughput, at the risk of reducing a machine's active tasks to the same recipie. That's still preferable IMO, but a menu toggle doesn't hurt

inscriber needs multiple inputs for some recipes, so it will become very complex to implemente mek like behavior.

I don't recall any valid recipes which remain valid with the addition of a ingredient not present in the recipe? That should be a good indicator