I made my factory with careful planning to be upgraded later mostly into blue belts feeding. It goes well, main bus is pretty wide 64*4 lanes blocks in total (so 256 lanes of material) with heap of ballancers etc.
I have it all with yellow belts and now I want step forward to red ones - and upgrade main bus and stuff around (where it makes sense) into red belts. - and to blue later as my very very expensive settings (100 times research cost rate) allows it.
Any way to uplgrade main bus simpler way than manually? I have logistic robots but dunno how to force them to replace yellow belts to red ones.
In fact there are 2 problems.
1. I can deconstruct all yellow stuff via filters at deconstruct blueprint and then make red ones blueprints, but not sure how upgrade yellow blueprints to red ones without manualy "create them again"
2. Deconstruct by robots means move millions plates and other stuff recently waiting on belts - i did not found way just for replacing belt "under stuff" by robots - while manually it is possible.
Any gues from an experienced expert?
