Note: There are 57,600/min coal being belt-outputed out of each tower which cannot be fullfilled with just it's own PLS drones (a single PLS limit is 36,000/min) There will need to be drones somewhere in the supply side as well. Upgrading the Coal-PLSs to ILSs is another possibility.
The assemblers are set to speedup (uses less factory entities) however if extra product is wanted: 1. Change the first row of assemblers to extra product (copy/paste recipe hotkey is helpful here) 2. Copy the first row (make it assemblers only by right-clicking on the uneeded buildings) 3. Paste on each of the remaining row. 4. This will yeild Proliferator (mk1) 108,000/min from Coal 86,400/min If you want to go back to speedup I recommend redoing the blueprint.