in ACT Remade (https://mods.factorio.com/mod/actual-craft-times-remade) you could click on multiple machines and work with them at the same time. it really helps with making and balancing things out. any chance you could incorporate something like that?
The idea is so big that it requires a full remake... well the code in original version is lightly said: "crap" and only logical thing to do if we wanna add something like this is to rewrite fully this mod. I hope my answer fulfilled your question because this is only port to Factorio 2.0 and not a remake :3
