Ah ok, I think i misunderstood how you imagine this to be implemented. You want one wildcard for everything. I thought you meant one wildcard for every fast replaceable group like "Any belt", "Any chest" or "Any inserter" (and I would prefer it that way).
My new understanding of your idea doesn't ...

I can’t say if this would indeed make this easier to code. But I don’t think it would be necessary to change the order. Why would it be a problem if you would have to select the wildcard first? And you don’t even have to.


if you didn't change that then you would have "change from *" to... game ...

Nice idea indeed, for making it easier to code, we could switch from/to tabs, so we first set what we wanna change it into, then set what we want to be changed

oh, that's sad, but i fully understand, i can live with too big/too small UI as long as it stays symmetric/readable

TL;DR
Delete steps from custom interface size and make it "Free type"

What ?
Tl;DR basically explains everything, i would like to be able to freely type what size of interface i need.
https://i.imgur.com/1IUBMcq.png

Why ?
Sometimes, 75% is too small, but 100% is too big, i think it would ...

-