Hi mate. I am everywhere now in your mods. This is the 3rd one I am commenting on :D

I know this is a big ask. and if it is too much work if you could aid me in going about it I'd be happy to help.

Is it possible to expand this mod to cover other buildings but in terms of output? I currently clock inserters for increased UPS. but it actually causes some less than ideal output, sometimes greatly, when using quality modules. As you might get 2 normal green circuits for example, and the 3rd is a higher quality, in which case the machine stops producing as it has no output slots available. It only continues once the inserter clock does it's swing, after which it immediately backs up again as the higher quality item takes the output slot and blocks any normal items from going in.

What I am looking for, is your mod but for output, where there are say 4 slots, one for each rarity. Once again if it is a large ask I understand if you don't want to take it on, but if you could point me in the right direction, maybe even do one I can see about extending it.

i do not believe it is possible to add extra output slots to assembling machines, you could do it to crafters but even then each item id has its own designated output slot, and well since two different qualities cannot fit in the same slot there isn't really anything a mod can do, you might want a mod that changes assembling machines to use output vectors (the yellow arrow) into a container and then take it out with inserters from that.

Thanks for the reply. I didn't realise it would be so difficult. I was thinking about how the assembly machine can take the yumako fruit and produce 2 different outputs, with one being a 2% chance of a seed. I was thinking we could do something similar for creating iron gear for example. Where the gear recipe takes in iron and has multiple output slots, each one fixed to output a specific quality, with the chance being determined by the number of quality modules in the machine.

And how about labs? could they have additional input slots? Could get crazy if you also modded to have more qualities.

i don't believe the lab prototype allows for several slots of the same bottle, regardless of quality.